21612250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 24214310

約数列:

[1, 2, 5, 10, 11, 22, 25, 29, 50, 55, 58, 110, 125, 145, 250, 271, 275, 290, 319, 542, 550, 638, 725, 1355, 1375, 1450, 1595, 2710, 2750, 2981, 3190, 3625, 5962, 6775, 7250, 7859, 7975, 13550, 14905, 15718, 15950, 29810, 33875, 39295, 39875, 67750, 74525, 78590, 79750, 86449, 149050, 172898, 196475, 372625, 392950, 432245, 745250, 864490, 982375, 1964750, 2161225, 4322450, 10806125, 21612250]

約数ペア:

[(1, 21612250), (2, 10806125), (5, 4322450), (10, 2161225), (11, 1964750), (22, 982375), (25, 864490), (29, 745250), (50, 432245), (55, 392950), (58, 372625), (110, 196475), (125, 172898), (145, 149050), (250, 86449), (271, 79750), (275, 78590), (290, 74525), (319, 67750), (542, 39875), (550, 39295), (638, 33875), (725, 29810), (1355, 15950), (1375, 15718), (1450, 14905), (1595, 13550), (2710, 7975), (2750, 7859), (2981, 7250), (3190, 6775), (3625, 5962)]