21155888911

素因数分解:

${\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{67619}}^1$

素因数の和:67926

約数の個数: 16

約数和(自身を含む): 22538557440

約数和(自身を除く): 1382668529

約数列:

[1, 23, 61, 223, 1403, 5129, 13603, 67619, 312869, 1555237, 4124759, 15079037, 94869457, 346817851, 919821257, 21155888911]

約数ペア:

[(1, 21155888911), (23, 919821257), (61, 346817851), (223, 94869457), (1403, 15079037), (5129, 4124759), (13603, 1555237), (67619, 312869)]