21974290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3931}}^1$

素因数の和:3994

約数の個数: 32

約数和(自身を含む): 43598016

約数和(自身を除く): 21623726

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3931, 5590, 7862, 19655, 39310, 51103, 102206, 169033, 255515, 338066, 511030, 845165, 1690330, 2197429, 4394858, 10987145, 21974290]

約数ペア:

[(1, 21974290), (2, 10987145), (5, 4394858), (10, 2197429), (13, 1690330), (26, 845165), (43, 511030), (65, 338066), (86, 255515), (130, 169033), (215, 102206), (430, 51103), (559, 39310), (1118, 19655), (2795, 7862), (3931, 5590)]