20556423

素因数分解:

$3^4\times {\mathrm{19}}^3\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 40

約数和(自身を含む): 33289520

約数和(自身を除く): 12733097

約数列:

[1, 3, 9, 19, 27, 37, 57, 81, 111, 171, 333, 361, 513, 703, 999, 1083, 1539, 2109, 2997, 3249, 6327, 6859, 9747, 13357, 18981, 20577, 29241, 40071, 56943, 61731, 120213, 185193, 253783, 360639, 555579, 761349, 1081917, 2284047, 6852141, 20556423]

約数ペア:

[(1, 20556423), (3, 6852141), (9, 2284047), (19, 1081917), (27, 761349), (37, 555579), (57, 360639), (81, 253783), (111, 185193), (171, 120213), (333, 61731), (361, 56943), (513, 40071), (703, 29241), (999, 20577), (1083, 18981), (1539, 13357), (2109, 9747), (2997, 6859), (3249, 6327)]