21474928

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22003}}^1$

素因数の和:22072

約数の個数: 20

約数和(自身を含む): 42291688

約数和(自身を除く): 20816760

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22003, 44006, 88012, 176024, 352048, 1342183, 2684366, 5368732, 10737464, 21474928]

約数ペア:

[(1, 21474928), (2, 10737464), (4, 5368732), (8, 2684366), (16, 1342183), (61, 352048), (122, 176024), (244, 88012), (488, 44006), (976, 22003)]