21396512

素因数分解:

$2^5\times {\mathrm{571}}^1\times {\mathrm{1171}}^1$

素因数の和:1752

約数の個数: 24

約数和(自身を含む): 42234192

約数和(自身を除く): 20837680

約数列:

[1, 2, 4, 8, 16, 32, 571, 1142, 1171, 2284, 2342, 4568, 4684, 9136, 9368, 18272, 18736, 37472, 668641, 1337282, 2674564, 5349128, 10698256, 21396512]

約数ペア:

[(1, 21396512), (2, 10698256), (4, 5349128), (8, 2674564), (16, 1337282), (32, 668641), (571, 37472), (1142, 18736), (1171, 18272), (2284, 9368), (2342, 9136), (4568, 4684)]