21346468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 44622144

約数和(自身を除く): 23275676

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 67, 134, 143, 268, 286, 557, 572, 737, 871, 1114, 1474, 1742, 2228, 2948, 3484, 6127, 7241, 9581, 12254, 14482, 19162, 24508, 28964, 37319, 38324, 74638, 79651, 149276, 159302, 318604, 410509, 485147, 821018, 970294, 1642036, 1940588, 5336617, 10673234, 21346468]

約数ペア:

[(1, 21346468), (2, 10673234), (4, 5336617), (11, 1940588), (13, 1642036), (22, 970294), (26, 821018), (44, 485147), (52, 410509), (67, 318604), (134, 159302), (143, 149276), (268, 79651), (286, 74638), (557, 38324), (572, 37319), (737, 28964), (871, 24508), (1114, 19162), (1474, 14482), (1742, 12254), (2228, 9581), (2948, 7241), (3484, 6127)]