21017170

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 41209560

約数和(自身を除く): 20192390

約数列:

[1, 2, 5, 10, 23, 29, 46, 58, 115, 137, 145, 230, 274, 290, 529, 667, 685, 1058, 1334, 1370, 2645, 3151, 3335, 3973, 5290, 6302, 6670, 7946, 15341, 15755, 19865, 30682, 31510, 39730, 72473, 76705, 91379, 144946, 153410, 182758, 362365, 456895, 724730, 913790, 2101717, 4203434, 10508585, 21017170]

約数ペア:

[(1, 21017170), (2, 10508585), (5, 4203434), (10, 2101717), (23, 913790), (29, 724730), (46, 456895), (58, 362365), (115, 182758), (137, 153410), (145, 144946), (230, 91379), (274, 76705), (290, 72473), (529, 39730), (667, 31510), (685, 30682), (1058, 19865), (1334, 15755), (1370, 15341), (2645, 7946), (3151, 6670), (3335, 6302), (3973, 5290)]