20505298

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{503}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 15419822

約数列:

[1, 2, 11, 17, 22, 34, 109, 187, 218, 374, 503, 1006, 1199, 1853, 2398, 3706, 5533, 8551, 11066, 17102, 20383, 40766, 54827, 94061, 109654, 188122, 603097, 932059, 1206194, 1864118, 10252649, 20505298]

約数ペア:

[(1, 20505298), (2, 10252649), (11, 1864118), (17, 1206194), (22, 932059), (34, 603097), (109, 188122), (187, 109654), (218, 94061), (374, 54827), (503, 40766), (1006, 20383), (1199, 17102), (1853, 11066), (2398, 8551), (3706, 5533)]