21707865

素因数分解:

$3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1423}}^1$

素因数の和:1550

約数の個数: 32

約数和(自身を含む): 38960640

約数和(自身を除く): 17252775

約数列:

[1, 3, 5, 9, 15, 27, 45, 113, 135, 339, 565, 1017, 1423, 1695, 3051, 4269, 5085, 7115, 12807, 15255, 21345, 38421, 64035, 160799, 192105, 482397, 803995, 1447191, 2411985, 4341573, 7235955, 21707865]

約数ペア:

[(1, 21707865), (3, 7235955), (5, 4341573), (9, 2411985), (15, 1447191), (27, 803995), (45, 482397), (113, 192105), (135, 160799), (339, 64035), (565, 38421), (1017, 21345), (1423, 15255), (1695, 12807), (3051, 7115), (4269, 5085)]