20321906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 35622720

約数和(自身を除く): 15300814

約数列:

[1, 2, 11, 19, 22, 38, 61, 122, 209, 418, 671, 797, 1159, 1342, 1594, 2318, 8767, 12749, 15143, 17534, 25498, 30286, 48617, 97234, 166573, 333146, 534787, 923723, 1069574, 1847446, 10160953, 20321906]

約数ペア:

[(1, 20321906), (2, 10160953), (11, 1847446), (19, 1069574), (22, 923723), (38, 534787), (61, 333146), (122, 166573), (209, 97234), (418, 48617), (671, 30286), (797, 25498), (1159, 17534), (1342, 15143), (1594, 12749), (2318, 8767)]