21879390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{56101}}^1$

素因数の和:56124

約数の個数: 32

約数和(自身を含む): 56550816

約数和(自身を除く): 34671426

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 56101, 112202, 168303, 280505, 336606, 561010, 729313, 841515, 1458626, 1683030, 2187939, 3646565, 4375878, 7293130, 10939695, 21879390]

約数ペア:

[(1, 21879390), (2, 10939695), (3, 7293130), (5, 4375878), (6, 3646565), (10, 2187939), (13, 1683030), (15, 1458626), (26, 841515), (30, 729313), (39, 561010), (65, 336606), (78, 280505), (130, 168303), (195, 112202), (390, 56101)]