21290824

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{461}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20621816

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 251, 461, 502, 922, 1004, 1844, 2008, 3688, 5773, 10603, 11546, 21206, 23092, 42412, 46184, 84824, 115711, 231422, 462844, 925688, 2661353, 5322706, 10645412, 21290824]

約数ペア:

[(1, 21290824), (2, 10645412), (4, 5322706), (8, 2661353), (23, 925688), (46, 462844), (92, 231422), (184, 115711), (251, 84824), (461, 46184), (502, 42412), (922, 23092), (1004, 21206), (1844, 11546), (2008, 10603), (3688, 5773)]