21721221572

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1\times {\mathrm{947}}^1$

素因数の和:1461

約数の個数: 96

約数和(自身を含む): 43545962880

約数和(自身を除く): 21824741308

約数列:

[1, 2, 4, 17, 19, 34, 38, 41, 68, 76, 82, 164, 323, 433, 646, 697, 779, 866, 947, 1292, 1394, 1558, 1732, 1894, 2788, 3116, 3788, 7361, 8227, 13243, 14722, 16099, 16454, 17753, 17993, 26486, 29444, 32198, 32908, 35506, 35986, 38827, 52972, 64396, 71012, 71972, 77654, 139859, 155308, 279718, 301801, 305881, 337307, 410051, 559436, 603602, 611762, 660059, 674614, 737713, 820102, 1207204, 1223524, 1320118, 1349228, 1475426, 1640204, 2640236, 2950852, 5734219, 6970867, 7790969, 11468438, 12541121, 13941734, 15581938, 16812091, 22936876, 25082242, 27883468, 31163876, 33624182, 50164484, 67248364, 132446473, 264892946, 285805547, 319429729, 529785892, 571611094, 638859458, 1143222188, 1277718916, 5430305393, 10860610786, 21721221572]

約数ペア:

[(1, 21721221572), (2, 10860610786), (4, 5430305393), (17, 1277718916), (19, 1143222188), (34, 638859458), (38, 571611094), (41, 529785892), (68, 319429729), (76, 285805547), (82, 264892946), (164, 132446473), (323, 67248364), (433, 50164484), (646, 33624182), (697, 31163876), (779, 27883468), (866, 25082242), (947, 22936876), (1292, 16812091), (1394, 15581938), (1558, 13941734), (1732, 12541121), (1894, 11468438), (2788, 7790969), (3116, 6970867), (3788, 5734219), (7361, 2950852), (8227, 2640236), (13243, 1640204), (14722, 1475426), (16099, 1349228), (16454, 1320118), (17753, 1223524), (17993, 1207204), (26486, 820102), (29444, 737713), (32198, 674614), (32908, 660059), (35506, 611762), (35986, 603602), (38827, 559436), (52972, 410051), (64396, 337307), (71012, 305881), (71972, 301801), (77654, 279718), (139859, 155308)]