20813904

素因数分解:

$2^4\times 3^2\times {\mathrm{144541}}^1$

素因数の和:144555

約数の個数: 30

約数和(自身を含む): 58250426

約数和(自身を除く): 37436522

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 144541, 289082, 433623, 578164, 867246, 1156328, 1300869, 1734492, 2312656, 2601738, 3468984, 5203476, 6937968, 10406952, 20813904]

約数ペア:

[(1, 20813904), (2, 10406952), (3, 6937968), (4, 5203476), (6, 3468984), (8, 2601738), (9, 2312656), (12, 1734492), (16, 1300869), (18, 1156328), (24, 867246), (36, 578164), (48, 433623), (72, 289082), (144, 144541)]