21725516

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 38903760

約数和(自身を除く): 17178244

約数列:

[1, 2, 4, 61, 122, 244, 269, 331, 538, 662, 1076, 1324, 16409, 20191, 32818, 40382, 65636, 80764, 89039, 178078, 356156, 5431379, 10862758, 21725516]

約数ペア:

[(1, 21725516), (2, 10862758), (4, 5431379), (61, 356156), (122, 178078), (244, 89039), (269, 80764), (331, 65636), (538, 40382), (662, 32818), (1076, 20191), (1324, 16409)]