28381563

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6529}}^1$

素因数の和:6568

約数の個数: 32

約数和(自身を含む): 50150400

約数和(自身を除く): 21768837

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 6529, 19587, 45703, 58761, 137109, 150167, 176283, 411327, 450501, 1051169, 1233981, 1351503, 3153507, 4054509, 9460521, 28381563]

約数ペア:

[(1, 28381563), (3, 9460521), (7, 4054509), (9, 3153507), (21, 1351503), (23, 1233981), (27, 1051169), (63, 450501), (69, 411327), (161, 176283), (189, 150167), (207, 137109), (483, 58761), (621, 45703), (1449, 19587), (4347, 6529)]