18724465

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1129}}^1$

素因数の和:1272

約数の個数: 16

約数和(自身を含む): 23431680

約数和(自身を除く): 4707215

約数列:

[1, 5, 31, 107, 155, 535, 1129, 3317, 5645, 16585, 34999, 120803, 174995, 604015, 3744893, 18724465]

約数ペア:

[(1, 18724465), (5, 3744893), (31, 604015), (107, 174995), (155, 120803), (535, 34999), (1129, 16585), (3317, 5645)]