21352480

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1181}}^1$

素因数の和:1309

約数の個数: 48

約数和(自身を含む): 50934744

約数和(自身を除く): 29582264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1181, 1808, 2260, 2362, 3616, 4520, 4724, 5905, 9040, 9448, 11810, 18080, 18896, 23620, 37792, 47240, 94480, 133453, 188960, 266906, 533812, 667265, 1067624, 1334530, 2135248, 2669060, 4270496, 5338120, 10676240, 21352480]

約数ペア:

[(1, 21352480), (2, 10676240), (4, 5338120), (5, 4270496), (8, 2669060), (10, 2135248), (16, 1334530), (20, 1067624), (32, 667265), (40, 533812), (80, 266906), (113, 188960), (160, 133453), (226, 94480), (452, 47240), (565, 37792), (904, 23620), (1130, 18896), (1181, 18080), (1808, 11810), (2260, 9448), (2362, 9040), (3616, 5905), (4520, 4724)]