21132212870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{111222173}}^1$

素因数の和:111222199

約数の個数: 16

約数和(自身を含む): 40039982640

約数和(自身を除く): 18907769770

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 111222173, 222444346, 556110865, 1112221730, 2113221287, 4226442574, 10566106435, 21132212870]

約数ペア:

[(1, 21132212870), (2, 10566106435), (5, 4226442574), (10, 2113221287), (19, 1112221730), (38, 556110865), (95, 222444346), (190, 111222173)]