291505214

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 631709568

約数和(自身を除く): 340204354

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 31, 49, 61, 62, 77, 91, 98, 121, 122, 143, 154, 182, 217, 242, 286, 341, 403, 427, 434, 539, 637, 671, 682, 793, 806, 847, 854, 1001, 1078, 1274, 1342, 1519, 1573, 1586, 1694, 1891, 2002, 2387, 2821, 2989, 3038, 3146, 3751, 3782, 4433, 4697, 4774, 5551, 5642, 5929, 5978, 7007, 7381, 7502, 8723, 8866, 9394, 11011, 11102, 11858, 13237, 14014, 14762, 16709, 17446, 19747, 20801, 22022, 24583, 26257, 26474, 31031, 32879, 33418, 38857, 39494, 41602, 48763, 49166, 51667, 52514, 61061, 62062, 65758, 77077, 77714, 92659, 95953, 97526, 103334, 122122, 145607, 154154, 172081, 183799, 185318, 191906, 217217, 228811, 270413, 291214, 341341, 344162, 361669, 367598, 427427, 434434, 457622, 540826, 671671, 682682, 723338, 854854, 1019249, 1204567, 1343342, 1601677, 1892891, 2038498, 2389387, 2409134, 2974543, 3203354, 3785782, 4701697, 4778774, 5949086, 9403394, 11211739, 13250237, 20821801, 22423478, 26500474, 41643602, 145752607, 291505214]

約数ペア:

[(1, 291505214), (2, 145752607), (7, 41643602), (11, 26500474), (13, 22423478), (14, 20821801), (22, 13250237), (26, 11211739), (31, 9403394), (49, 5949086), (61, 4778774), (62, 4701697), (77, 3785782), (91, 3203354), (98, 2974543), (121, 2409134), (122, 2389387), (143, 2038498), (154, 1892891), (182, 1601677), (217, 1343342), (242, 1204567), (286, 1019249), (341, 854854), (403, 723338), (427, 682682), (434, 671671), (539, 540826), (637, 457622), (671, 434434), (682, 427427), (793, 367598), (806, 361669), (847, 344162), (854, 341341), (1001, 291214), (1078, 270413), (1274, 228811), (1342, 217217), (1519, 191906), (1573, 185318), (1586, 183799), (1694, 172081), (1891, 154154), (2002, 145607), (2387, 122122), (2821, 103334), (2989, 97526), (3038, 95953), (3146, 92659), (3751, 77714), (3782, 77077), (4433, 65758), (4697, 62062), (4774, 61061), (5551, 52514), (5642, 51667), (5929, 49166), (5978, 48763), (7007, 41602), (7381, 39494), (7502, 38857), (8723, 33418), (8866, 32879), (9394, 31031), (11011, 26474), (11102, 26257), (11858, 24583), (13237, 22022), (14014, 20801), (14762, 19747), (16709, 17446)]