21795764

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{347}}^1\times {\mathrm{383}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 39287808

約数和(自身を除く): 17492044

約数列:

[1, 2, 4, 41, 82, 164, 347, 383, 694, 766, 1388, 1532, 14227, 15703, 28454, 31406, 56908, 62812, 132901, 265802, 531604, 5448941, 10897882, 21795764]

約数ペア:

[(1, 21795764), (2, 10897882), (4, 5448941), (41, 531604), (82, 265802), (164, 132901), (347, 62812), (383, 56908), (694, 31406), (766, 28454), (1388, 15703), (1532, 14227)]