21891197790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{287173}}^1$

素因数の和:287215

約数の個数: 144

約数和(自身を含む): 71499433824

約数和(自身を除く): 49608236034

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 55, 63, 66, 70, 77, 90, 99, 105, 110, 121, 126, 154, 165, 198, 210, 231, 242, 315, 330, 363, 385, 462, 495, 605, 630, 693, 726, 770, 847, 990, 1089, 1155, 1210, 1386, 1694, 1815, 2178, 2310, 2541, 3465, 3630, 4235, 5082, 5445, 6930, 7623, 8470, 10890, 12705, 15246, 25410, 38115, 76230, 287173, 574346, 861519, 1435865, 1723038, 2010211, 2584557, 2871730, 3158903, 4020422, 4307595, 5169114, 6030633, 6317806, 8615190, 9476709, 10051055, 12061266, 12922785, 15794515, 18091899, 18953418, 20102110, 22112321, 25845570, 28430127, 30153165, 31589030, 34747933, 36183798, 44224642, 47383545, 56860254, 60306330, 66336963, 69495866, 90459495, 94767090, 104243799, 110561605, 132673926, 142150635, 173739665, 180918990, 199010889, 208487598, 221123210, 243235531, 284301270, 312731397, 331684815, 347479330, 398021778, 486471062, 521218995, 625462794, 663369630, 729706593, 995054445, 1042437990, 1216177655, 1459413186, 1563656985, 1990108890, 2189119779, 2432355310, 3127313970, 3648532965, 4378239558, 7297065930, 10945598895, 21891197790]

約数ペア:

[(1, 21891197790), (2, 10945598895), (3, 7297065930), (5, 4378239558), (6, 3648532965), (7, 3127313970), (9, 2432355310), (10, 2189119779), (11, 1990108890), (14, 1563656985), (15, 1459413186), (18, 1216177655), (21, 1042437990), (22, 995054445), (30, 729706593), (33, 663369630), (35, 625462794), (42, 521218995), (45, 486471062), (55, 398021778), (63, 347479330), (66, 331684815), (70, 312731397), (77, 284301270), (90, 243235531), (99, 221123210), (105, 208487598), (110, 199010889), (121, 180918990), (126, 173739665), (154, 142150635), (165, 132673926), (198, 110561605), (210, 104243799), (231, 94767090), (242, 90459495), (315, 69495866), (330, 66336963), (363, 60306330), (385, 56860254), (462, 47383545), (495, 44224642), (605, 36183798), (630, 34747933), (693, 31589030), (726, 30153165), (770, 28430127), (847, 25845570), (990, 22112321), (1089, 20102110), (1155, 18953418), (1210, 18091899), (1386, 15794515), (1694, 12922785), (1815, 12061266), (2178, 10051055), (2310, 9476709), (2541, 8615190), (3465, 6317806), (3630, 6030633), (4235, 5169114), (5082, 4307595), (5445, 4020422), (6930, 3158903), (7623, 2871730), (8470, 2584557), (10890, 2010211), (12705, 1723038), (15246, 1435865), (25410, 861519), (38115, 574346), (76230, 287173)]