19218706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 13440494

約数列:

[1, 2, 13, 26, 29, 58, 71, 142, 359, 377, 718, 754, 923, 1846, 2059, 4118, 4667, 9334, 10411, 20822, 25489, 26767, 50978, 53534, 135343, 270686, 331357, 662714, 739181, 1478362, 9609353, 19218706]

約数ペア:

[(1, 19218706), (2, 9609353), (13, 1478362), (26, 739181), (29, 662714), (58, 331357), (71, 270686), (142, 135343), (359, 53534), (377, 50978), (718, 26767), (754, 25489), (923, 20822), (1846, 10411), (2059, 9334), (4118, 4667)]