20451184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98323}}^1$

素因数の和:98344

約数の個数: 20

約数和(自身を含む): 42672616

約数和(自身を除く): 22221432

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98323, 196646, 393292, 786584, 1278199, 1573168, 2556398, 5112796, 10225592, 20451184]

約数ペア:

[(1, 20451184), (2, 10225592), (4, 5112796), (8, 2556398), (13, 1573168), (16, 1278199), (26, 786584), (52, 393292), (104, 196646), (208, 98323)]