18807555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2243}}^1$

素因数の和:2307

約数の個数: 32

約数和(自身を含む): 33175296

約数和(自身を除く): 14367741

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2243, 2795, 6729, 8385, 11215, 29159, 33645, 87477, 96449, 145795, 289347, 437385, 482245, 1253837, 1446735, 3761511, 6269185, 18807555]

約数ペア:

[(1, 18807555), (3, 6269185), (5, 3761511), (13, 1446735), (15, 1253837), (39, 482245), (43, 437385), (65, 289347), (129, 145795), (195, 96449), (215, 87477), (559, 33645), (645, 29159), (1677, 11215), (2243, 8385), (2795, 6729)]