21939125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{587}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 30820608

約数和(自身を除く): 8881483

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 575, 587, 1495, 1625, 2875, 2935, 7475, 7631, 13501, 14675, 37375, 38155, 67505, 73375, 175513, 190775, 337525, 877565, 953875, 1687625, 4387825, 21939125]

約数ペア:

[(1, 21939125), (5, 4387825), (13, 1687625), (23, 953875), (25, 877565), (65, 337525), (115, 190775), (125, 175513), (299, 73375), (325, 67505), (575, 38155), (587, 37375), (1495, 14675), (1625, 13501), (2875, 7631), (2935, 7475)]