21868275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2039}}^1$

素因数の和:2076

約数の個数: 48

約数和(自身を含む): 42497280

約数和(自身を除く): 20629005

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 2039, 2145, 3575, 6117, 10195, 10725, 22429, 26507, 30585, 50975, 67287, 79521, 112145, 132535, 152925, 291577, 336435, 397605, 560725, 662675, 874731, 1457885, 1682175, 1988025, 4373655, 7289425, 21868275]

約数ペア:

[(1, 21868275), (3, 7289425), (5, 4373655), (11, 1988025), (13, 1682175), (15, 1457885), (25, 874731), (33, 662675), (39, 560725), (55, 397605), (65, 336435), (75, 291577), (143, 152925), (165, 132535), (195, 112145), (275, 79521), (325, 67287), (429, 50975), (715, 30585), (825, 26507), (975, 22429), (2039, 10725), (2145, 10195), (3575, 6117)]