21301305

素因数分解:

$3^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1601}}^1$

素因数の和:2496

約数の個数: 16

約数和(自身を含む): 34141824

約数和(自身を除く): 12840519

約数列:

[1, 3, 5, 15, 887, 1601, 2661, 4435, 4803, 8005, 13305, 24015, 1420087, 4260261, 7100435, 21301305]

約数ペア:

[(1, 21301305), (3, 7100435), (5, 4260261), (15, 1420087), (887, 24015), (1601, 13305), (2661, 8005), (4435, 4803)]