21640410

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21859}}^1$

素因数の和:21883

約数の個数: 48

約数和(自身を含む): 61382880

約数和(自身を除く): 39742470

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21859, 43718, 65577, 109295, 131154, 196731, 218590, 240449, 327885, 393462, 480898, 655770, 721347, 983655, 1202245, 1442694, 1967310, 2164041, 2404490, 3606735, 4328082, 7213470, 10820205, 21640410]

約数ペア:

[(1, 21640410), (2, 10820205), (3, 7213470), (5, 4328082), (6, 3606735), (9, 2404490), (10, 2164041), (11, 1967310), (15, 1442694), (18, 1202245), (22, 983655), (30, 721347), (33, 655770), (45, 480898), (55, 393462), (66, 327885), (90, 240449), (99, 218590), (110, 196731), (165, 131154), (198, 109295), (330, 65577), (495, 43718), (990, 21859)]