19801606

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{757}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 34382880

約数和(自身を除く): 14581274

約数列:

[1, 2, 11, 22, 29, 41, 58, 82, 319, 451, 638, 757, 902, 1189, 1514, 2378, 8327, 13079, 16654, 21953, 26158, 31037, 43906, 62074, 241483, 341407, 482966, 682814, 900073, 1800146, 9900803, 19801606]

約数ペア:

[(1, 19801606), (2, 9900803), (11, 1800146), (22, 900073), (29, 682814), (41, 482966), (58, 341407), (82, 241483), (319, 62074), (451, 43906), (638, 31037), (757, 26158), (902, 21953), (1189, 16654), (1514, 13079), (2378, 8327)]