21977584

素因数分解:

$2^4\times {\mathrm{541}}^1\times {\mathrm{2539}}^1$

素因数の和:3088

約数の個数: 20

約数和(自身を含む): 42677080

約数和(自身を除く): 20699496

約数列:

[1, 2, 4, 8, 16, 541, 1082, 2164, 2539, 4328, 5078, 8656, 10156, 20312, 40624, 1373599, 2747198, 5494396, 10988792, 21977584]

約数ペア:

[(1, 21977584), (2, 10988792), (4, 5494396), (8, 2747198), (16, 1373599), (541, 40624), (1082, 20312), (2164, 10156), (2539, 8656), (4328, 5078)]