21195070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8581}}^1$

素因数の和:8620

約数の個数: 32

約数和(自身を含む): 43253280

約数和(自身を除く): 22058210

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8581, 17162, 42905, 85810, 111553, 163039, 223106, 326078, 557765, 815195, 1115530, 1630390, 2119507, 4239014, 10597535, 21195070]

約数ペア:

[(1, 21195070), (2, 10597535), (5, 4239014), (10, 2119507), (13, 1630390), (19, 1115530), (26, 815195), (38, 557765), (65, 326078), (95, 223106), (130, 163039), (190, 111553), (247, 85810), (494, 42905), (1235, 17162), (2470, 8581)]