21481140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11549}}^1$

素因数の和:11592

約数の個数: 48

約数和(自身を含む): 62092800

約数和(自身を除く): 40611660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11549, 23098, 34647, 46196, 57745, 69294, 115490, 138588, 173235, 230980, 346470, 358019, 692940, 716038, 1074057, 1432076, 1790095, 2148114, 3580190, 4296228, 5370285, 7160380, 10740570, 21481140]

約数ペア:

[(1, 21481140), (2, 10740570), (3, 7160380), (4, 5370285), (5, 4296228), (6, 3580190), (10, 2148114), (12, 1790095), (15, 1432076), (20, 1074057), (30, 716038), (31, 692940), (60, 358019), (62, 346470), (93, 230980), (124, 173235), (155, 138588), (186, 115490), (310, 69294), (372, 57745), (465, 46196), (620, 34647), (930, 23098), (1860, 11549)]