21545700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{6529}}^1$

素因数の和:6557

約数の個数: 72

約数和(自身を含む): 68016480

約数和(自身を除く): 46470780

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 110, 132, 150, 165, 220, 275, 300, 330, 550, 660, 825, 1100, 1650, 3300, 6529, 13058, 19587, 26116, 32645, 39174, 65290, 71819, 78348, 97935, 130580, 143638, 163225, 195870, 215457, 287276, 326450, 359095, 391740, 430914, 489675, 652900, 718190, 861828, 979350, 1077285, 1436380, 1795475, 1958700, 2154570, 3590950, 4309140, 5386425, 7181900, 10772850, 21545700]

約数ペア:

[(1, 21545700), (2, 10772850), (3, 7181900), (4, 5386425), (5, 4309140), (6, 3590950), (10, 2154570), (11, 1958700), (12, 1795475), (15, 1436380), (20, 1077285), (22, 979350), (25, 861828), (30, 718190), (33, 652900), (44, 489675), (50, 430914), (55, 391740), (60, 359095), (66, 326450), (75, 287276), (100, 215457), (110, 195870), (132, 163225), (150, 143638), (165, 130580), (220, 97935), (275, 78348), (300, 71819), (330, 65290), (550, 39174), (660, 32645), (825, 26116), (1100, 19587), (1650, 13058), (3300, 6529)]