21254727

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1\times {\mathrm{827}}^1$

素因数の和:1502

約数の個数: 16

約数和(自身を含む): 30602880

約数和(自身を除く): 9348153

約数列:

[1, 3, 13, 39, 659, 827, 1977, 2481, 8567, 10751, 25701, 32253, 544993, 1634979, 7084909, 21254727]

約数ペア:

[(1, 21254727), (3, 7084909), (13, 1634979), (39, 544993), (659, 32253), (827, 25701), (1977, 10751), (2481, 8567)]