21459590

素因数分解:

$2^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{9371}}^1$

素因数の和:9607

約数の個数: 16

約数和(自身を含む): 38800080

約数和(自身を除く): 17340490

約数列:

[1, 2, 5, 10, 229, 458, 1145, 2290, 9371, 18742, 46855, 93710, 2145959, 4291918, 10729795, 21459590]

約数ペア:

[(1, 21459590), (2, 10729795), (5, 4291918), (10, 2145959), (229, 93710), (458, 46855), (1145, 18742), (2290, 9371)]