21642325

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:333

約数の個数: 24

約数和(自身を含む): 27819648

約数和(自身を除く): 6177323

約数列:

[1, 5, 25, 47, 113, 163, 235, 565, 815, 1175, 2825, 4075, 5311, 7661, 18419, 26555, 38305, 92095, 132775, 191525, 460475, 865693, 4328465, 21642325]

約数ペア:

[(1, 21642325), (5, 4328465), (25, 865693), (47, 460475), (113, 191525), (163, 132775), (235, 92095), (565, 38305), (815, 26555), (1175, 18419), (2825, 7661), (4075, 5311)]