21320624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102503}}^1$

素因数の和:102524

約数の個数: 20

約数和(自身を含む): 44486736

約数和(自身を除く): 23166112

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102503, 205006, 410012, 820024, 1332539, 1640048, 2665078, 5330156, 10660312, 21320624]

約数ペア:

[(1, 21320624), (2, 10660312), (4, 5330156), (8, 2665078), (13, 1640048), (16, 1332539), (26, 820024), (52, 410012), (104, 205006), (208, 102503)]