21346975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3457}}^1$

素因数の和:3499

約数の個数: 24

約数和(自身を含む): 30015440

約数和(自身を除く): 8668465

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3457, 6175, 17285, 44941, 65683, 86425, 224705, 328415, 853879, 1123525, 1642075, 4269395, 21346975]

約数ペア:

[(1, 21346975), (5, 4269395), (13, 1642075), (19, 1123525), (25, 853879), (65, 328415), (95, 224705), (247, 86425), (325, 65683), (475, 44941), (1235, 17285), (3457, 6175)]