20161966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 37822464

約数和(自身を除く): 17660498

約数列:

[1, 2, 11, 17, 22, 31, 34, 37, 47, 62, 74, 94, 187, 341, 374, 407, 517, 527, 629, 682, 799, 814, 1034, 1054, 1147, 1258, 1457, 1598, 1739, 2294, 2914, 3478, 5797, 6919, 8789, 11594, 12617, 13838, 16027, 17578, 19129, 19499, 24769, 25234, 29563, 32054, 38258, 38998, 49538, 53909, 59126, 107818, 214489, 272459, 325193, 428978, 544918, 592999, 650386, 916453, 1185998, 1832906, 10080983, 20161966]

約数ペア:

[(1, 20161966), (2, 10080983), (11, 1832906), (17, 1185998), (22, 916453), (31, 650386), (34, 592999), (37, 544918), (47, 428978), (62, 325193), (74, 272459), (94, 214489), (187, 107818), (341, 59126), (374, 53909), (407, 49538), (517, 38998), (527, 38258), (629, 32054), (682, 29563), (799, 25234), (814, 24769), (1034, 19499), (1054, 19129), (1147, 17578), (1258, 16027), (1457, 13838), (1598, 12617), (1739, 11594), (2294, 8789), (2914, 6919), (3478, 5797)]