19540731

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1759}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 31144960

約数和(自身を除く): 11604229

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 529, 1587, 1759, 3703, 5277, 11109, 12313, 36939, 40457, 121371, 283199, 849597, 930511, 2791533, 6513577, 19540731]

約数ペア:

[(1, 19540731), (3, 6513577), (7, 2791533), (21, 930511), (23, 849597), (69, 283199), (161, 121371), (483, 40457), (529, 36939), (1587, 12313), (1759, 11109), (3703, 5277)]