21982625

素因数分解:

$5^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 33113808

約数和(自身を除く): 11131183

約数列:

[1, 5, 7, 25, 35, 37, 49, 97, 125, 175, 185, 245, 259, 485, 679, 875, 925, 1225, 1295, 1813, 2425, 3395, 3589, 4625, 4753, 6125, 6475, 9065, 12125, 16975, 17945, 23765, 25123, 32375, 45325, 84875, 89725, 118825, 125615, 175861, 226625, 448625, 594125, 628075, 879305, 3140375, 4396525, 21982625]

約数ペア:

[(1, 21982625), (5, 4396525), (7, 3140375), (25, 879305), (35, 628075), (37, 594125), (49, 448625), (97, 226625), (125, 175861), (175, 125615), (185, 118825), (245, 89725), (259, 84875), (485, 45325), (679, 32375), (875, 25123), (925, 23765), (1225, 17945), (1295, 16975), (1813, 12125), (2425, 9065), (3395, 6475), (3589, 6125), (4625, 4753)]