21486140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3593}}^1$

素因数の和:3638

約数の個数: 48

約数和(自身を含む): 50718528

約数和(自身を除く): 29232388

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3593, 5980, 7186, 14372, 17965, 35930, 46709, 71860, 82639, 93418, 165278, 186836, 233545, 330556, 413195, 467090, 826390, 934180, 1074307, 1652780, 2148614, 4297228, 5371535, 10743070, 21486140]

約数ペア:

[(1, 21486140), (2, 10743070), (4, 5371535), (5, 4297228), (10, 2148614), (13, 1652780), (20, 1074307), (23, 934180), (26, 826390), (46, 467090), (52, 413195), (65, 330556), (92, 233545), (115, 186836), (130, 165278), (230, 93418), (260, 82639), (299, 71860), (460, 46709), (598, 35930), (1196, 17965), (1495, 14372), (2990, 7186), (3593, 5980)]