19903556

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{3229}}^1$

素因数の和:3323

約数の個数: 24

約数和(自身を含む): 36899520

約数和(自身を除く): 16995964

約数列:

[1, 2, 4, 23, 46, 67, 92, 134, 268, 1541, 3082, 3229, 6164, 6458, 12916, 74267, 148534, 216343, 297068, 432686, 865372, 4975889, 9951778, 19903556]

約数ペア:

[(1, 19903556), (2, 9951778), (4, 4975889), (23, 865372), (46, 432686), (67, 297068), (92, 216343), (134, 148534), (268, 74267), (1541, 12916), (3082, 6458), (3229, 6164)]