21932560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21089}}^1$

素因数の和:21115

約数の個数: 40

約数和(自身を含む): 54918360

約数和(自身を除く): 32985800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 21089, 42178, 84356, 105445, 168712, 210890, 274157, 337424, 421780, 548314, 843560, 1096628, 1370785, 1687120, 2193256, 2741570, 4386512, 5483140, 10966280, 21932560]

約数ペア:

[(1, 21932560), (2, 10966280), (4, 5483140), (5, 4386512), (8, 2741570), (10, 2193256), (13, 1687120), (16, 1370785), (20, 1096628), (26, 843560), (40, 548314), (52, 421780), (65, 337424), (80, 274157), (104, 210890), (130, 168712), (208, 105445), (260, 84356), (520, 42178), (1040, 21089)]