21248085

素因数分解:

$3^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1597}}^1$

素因数の和:2492

約数の個数: 16

約数和(自身を含む): 34056576

約数和(自身を除く): 12808491

約数列:

[1, 3, 5, 15, 887, 1597, 2661, 4435, 4791, 7985, 13305, 23955, 1416539, 4249617, 7082695, 21248085]

約数ペア:

[(1, 21248085), (3, 7082695), (5, 4249617), (15, 1416539), (887, 23955), (1597, 13305), (2661, 7985), (4435, 4791)]