21251425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2843}}^1$

素因数の和:2889

約数の個数: 24

約数和(自身を含む): 29623104

約数和(自身を除く): 8371679

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2843, 7475, 14215, 36959, 65389, 71075, 184795, 326945, 850057, 923975, 1634725, 4250285, 21251425]

約数ペア:

[(1, 21251425), (5, 4250285), (13, 1634725), (23, 923975), (25, 850057), (65, 326945), (115, 184795), (299, 71075), (325, 65389), (575, 36959), (1495, 14215), (2843, 7475)]