19931427

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2389}}^1$

素因数の和:2504

約数の個数: 20

約数和(自身を含む): 30075760

約数和(自身を除く): 10144333

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2389, 2781, 7167, 8343, 21501, 64503, 193509, 246067, 738201, 2214603, 6643809, 19931427]

約数ペア:

[(1, 19931427), (3, 6643809), (9, 2214603), (27, 738201), (81, 246067), (103, 193509), (309, 64503), (927, 21501), (2389, 8343), (2781, 7167)]