21035528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1129}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 42103800

約数和(自身を除く): 21068272

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 137, 274, 548, 1096, 1129, 2258, 2329, 4516, 4658, 9032, 9316, 18632, 19193, 38386, 76772, 153544, 154673, 309346, 618692, 1237384, 2629441, 5258882, 10517764, 21035528]

約数ペア:

[(1, 21035528), (2, 10517764), (4, 5258882), (8, 2629441), (17, 1237384), (34, 618692), (68, 309346), (136, 154673), (137, 153544), (274, 76772), (548, 38386), (1096, 19193), (1129, 18632), (2258, 9316), (2329, 9032), (4516, 4658)]