21360950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 43590960

約数和(自身を除く): 22230010

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 59, 65, 118, 130, 295, 325, 557, 590, 650, 767, 1114, 1475, 1534, 2785, 2950, 3835, 5570, 7241, 7670, 13925, 14482, 19175, 27850, 32863, 36205, 38350, 65726, 72410, 164315, 181025, 328630, 362050, 427219, 821575, 854438, 1643150, 2136095, 4272190, 10680475, 21360950]

約数ペア:

[(1, 21360950), (2, 10680475), (5, 4272190), (10, 2136095), (13, 1643150), (25, 854438), (26, 821575), (50, 427219), (59, 362050), (65, 328630), (118, 181025), (130, 164315), (295, 72410), (325, 65726), (557, 38350), (590, 36205), (650, 32863), (767, 27850), (1114, 19175), (1475, 14482), (1534, 13925), (2785, 7670), (2950, 7241), (3835, 5570)]