399940918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{21881}}^1$

素因数の和:21952

約数の個数: 32

約数和(自身を含む): 698473440

約数和(自身を除く): 298532522

約数列:

[1, 2, 13, 19, 26, 37, 38, 74, 247, 481, 494, 703, 962, 1406, 9139, 18278, 21881, 43762, 284453, 415739, 568906, 809597, 831478, 1619194, 5404607, 10524761, 10809214, 15382343, 21049522, 30764686, 199970459, 399940918]

約数ペア:

[(1, 399940918), (2, 199970459), (13, 30764686), (19, 21049522), (26, 15382343), (37, 10809214), (38, 10524761), (74, 5404607), (247, 1619194), (481, 831478), (494, 809597), (703, 568906), (962, 415739), (1406, 284453), (9139, 43762), (18278, 21881)]