20905962

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1223}}^1$

素因数の和:1283

約数の個数: 64

約数和(自身を含む): 53581824

約数和(自身を除く): 32675862

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 37, 42, 66, 74, 77, 111, 154, 222, 231, 259, 407, 462, 518, 777, 814, 1221, 1223, 1554, 2442, 2446, 2849, 3669, 5698, 7338, 8547, 8561, 13453, 17094, 17122, 25683, 26906, 40359, 45251, 51366, 80718, 90502, 94171, 135753, 188342, 271506, 282513, 316757, 497761, 565026, 633514, 950271, 995522, 1493283, 1900542, 2986566, 3484327, 6968654, 10452981, 20905962]

約数ペア:

[(1, 20905962), (2, 10452981), (3, 6968654), (6, 3484327), (7, 2986566), (11, 1900542), (14, 1493283), (21, 995522), (22, 950271), (33, 633514), (37, 565026), (42, 497761), (66, 316757), (74, 282513), (77, 271506), (111, 188342), (154, 135753), (222, 94171), (231, 90502), (259, 80718), (407, 51366), (462, 45251), (518, 40359), (777, 26906), (814, 25683), (1221, 17122), (1223, 17094), (1554, 13453), (2442, 8561), (2446, 8547), (2849, 7338), (3669, 5698)]