21865930

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{241}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 40632768

約数和(自身を除く): 18766838

約数列:

[1, 2, 5, 10, 43, 86, 211, 215, 241, 422, 430, 482, 1055, 1205, 2110, 2410, 9073, 10363, 18146, 20726, 45365, 50851, 51815, 90730, 101702, 103630, 254255, 508510, 2186593, 4373186, 10932965, 21865930]

約数ペア:

[(1, 21865930), (2, 10932965), (5, 4373186), (10, 2186593), (43, 508510), (86, 254255), (211, 103630), (215, 101702), (241, 90730), (422, 51815), (430, 50851), (482, 45365), (1055, 20726), (1205, 18146), (2110, 10363), (2410, 9073)]