21102052

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 38041920

約数和(自身を除く): 16939868

約数列:

[1, 2, 4, 67, 71, 134, 142, 268, 284, 1109, 2218, 4436, 4757, 9514, 19028, 74303, 78739, 148606, 157478, 297212, 314956, 5275513, 10551026, 21102052]

約数ペア:

[(1, 21102052), (2, 10551026), (4, 5275513), (67, 314956), (71, 297212), (134, 157478), (142, 148606), (268, 78739), (284, 74303), (1109, 19028), (2218, 9514), (4436, 4757)]