18290961

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 30876160

約数和(自身を除く): 12585199

約数列:

[1, 3, 9, 13, 27, 31, 39, 41, 93, 117, 123, 279, 351, 369, 403, 533, 837, 1107, 1209, 1271, 1599, 1681, 3627, 3813, 4797, 5043, 10881, 11439, 14391, 15129, 16523, 21853, 34317, 45387, 49569, 52111, 65559, 148707, 156333, 196677, 446121, 468999, 590031, 677443, 1406997, 2032329, 6096987, 18290961]

約数ペア:

[(1, 18290961), (3, 6096987), (9, 2032329), (13, 1406997), (27, 677443), (31, 590031), (39, 468999), (41, 446121), (93, 196677), (117, 156333), (123, 148707), (279, 65559), (351, 52111), (369, 49569), (403, 45387), (533, 34317), (837, 21853), (1107, 16523), (1209, 15129), (1271, 14391), (1599, 11439), (1681, 10881), (3627, 5043), (3813, 4797)]