15318381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 22998528

約数和(自身を除く): 7680147

約数列:

[1, 3, 13, 39, 47, 61, 137, 141, 183, 411, 611, 793, 1781, 1833, 2379, 2867, 5343, 6439, 8357, 8601, 19317, 25071, 37271, 83707, 108641, 111813, 251121, 325923, 392779, 1178337, 5106127, 15318381]

約数ペア:

[(1, 15318381), (3, 5106127), (13, 1178337), (39, 392779), (47, 325923), (61, 251121), (137, 111813), (141, 108641), (183, 83707), (411, 37271), (611, 25071), (793, 19317), (1781, 8601), (1833, 8357), (2379, 6439), (2867, 5343)]