20216567

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 24993360

約数和(自身を除く): 4776793

約数列:

[1, 7, 29, 41, 49, 203, 287, 347, 1189, 1421, 2009, 2429, 8323, 10063, 14227, 17003, 58261, 70441, 99589, 412583, 493087, 697123, 2888081, 20216567]

約数ペア:

[(1, 20216567), (7, 2888081), (29, 697123), (41, 493087), (49, 412583), (203, 99589), (287, 70441), (347, 58261), (1189, 17003), (1421, 14227), (2009, 10063), (2429, 8323)]