28920591

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6653}}^1$

素因数の和:6692

約数の個数: 32

約数和(自身を含む): 51102720

約数和(自身を除く): 22182129

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 6653, 19959, 46571, 59877, 139713, 153019, 179631, 419139, 459057, 1071133, 1257417, 1377171, 3213399, 4131513, 9640197, 28920591]

約数ペア:

[(1, 28920591), (3, 9640197), (7, 4131513), (9, 3213399), (21, 1377171), (23, 1257417), (27, 1071133), (63, 459057), (69, 419139), (161, 179631), (189, 153019), (207, 139713), (483, 59877), (621, 46571), (1449, 19959), (4347, 6653)]