21714875

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 35223552

約数和(自身を除く): 13508677

約数列:

[1, 5, 7, 13, 23, 25, 35, 65, 83, 91, 115, 125, 161, 175, 299, 325, 415, 455, 575, 581, 805, 875, 1079, 1495, 1625, 1909, 2075, 2093, 2275, 2875, 2905, 4025, 5395, 7475, 7553, 9545, 10375, 10465, 11375, 13363, 14525, 20125, 24817, 26975, 37375, 37765, 47725, 52325, 66815, 72625, 124085, 134875, 173719, 188825, 238625, 261625, 334075, 620425, 868595, 944125, 1670375, 3102125, 4342975, 21714875]

約数ペア:

[(1, 21714875), (5, 4342975), (7, 3102125), (13, 1670375), (23, 944125), (25, 868595), (35, 620425), (65, 334075), (83, 261625), (91, 238625), (115, 188825), (125, 173719), (161, 134875), (175, 124085), (299, 72625), (325, 66815), (415, 52325), (455, 47725), (575, 37765), (581, 37375), (805, 26975), (875, 24817), (1079, 20125), (1495, 14525), (1625, 13363), (1909, 11375), (2075, 10465), (2093, 10375), (2275, 9545), (2875, 7553), (2905, 7475), (4025, 5395)]