21485519

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{521}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 24655104

約数和(自身を除く): 3169585

約数列:

[1, 11, 23, 163, 253, 521, 1793, 3749, 5731, 11983, 41239, 84923, 131813, 934153, 1953229, 21485519]

約数ペア:

[(1, 21485519), (11, 1953229), (23, 934153), (163, 131813), (253, 84923), (521, 41239), (1793, 11983), (3749, 5731)]