21863608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4889}}^1$

素因数の和:4951

約数の個数: 32

約数和(自身を含む): 45183600

約数和(自身を除く): 23319992

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4889, 9778, 19556, 39112, 63557, 127114, 210227, 254228, 420454, 508456, 840908, 1681816, 2732951, 5465902, 10931804, 21863608]

約数ペア:

[(1, 21863608), (2, 10931804), (4, 5465902), (8, 2732951), (13, 1681816), (26, 840908), (43, 508456), (52, 420454), (86, 254228), (104, 210227), (172, 127114), (344, 63557), (559, 39112), (1118, 19556), (2236, 9778), (4472, 4889)]