21358000

素因数分解:

$2^4\times 5^3\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 52809120

約数和(自身を除く): 31451120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 125, 181, 200, 236, 250, 295, 362, 400, 472, 500, 590, 724, 905, 944, 1000, 1180, 1448, 1475, 1810, 2000, 2360, 2896, 2950, 3620, 4525, 4720, 5900, 7240, 7375, 9050, 10679, 11800, 14480, 14750, 18100, 21358, 22625, 23600, 29500, 36200, 42716, 45250, 53395, 59000, 72400, 85432, 90500, 106790, 118000, 170864, 181000, 213580, 266975, 362000, 427160, 533950, 854320, 1067900, 1334875, 2135800, 2669750, 4271600, 5339500, 10679000, 21358000]

約数ペア:

[(1, 21358000), (2, 10679000), (4, 5339500), (5, 4271600), (8, 2669750), (10, 2135800), (16, 1334875), (20, 1067900), (25, 854320), (40, 533950), (50, 427160), (59, 362000), (80, 266975), (100, 213580), (118, 181000), (125, 170864), (181, 118000), (200, 106790), (236, 90500), (250, 85432), (295, 72400), (362, 59000), (400, 53395), (472, 45250), (500, 42716), (590, 36200), (724, 29500), (905, 23600), (944, 22625), (1000, 21358), (1180, 18100), (1448, 14750), (1475, 14480), (1810, 11800), (2000, 10679), (2360, 9050), (2896, 7375), (2950, 7240), (3620, 5900), (4525, 4720)]