21858156719

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{58549}}^1$

素因数の和:58983

約数の個数: 24

約数和(自身を含む): 26832294000

約数和(自身を除く): 4974137281

約数列:

[1, 7, 19, 49, 133, 401, 931, 2807, 7619, 19649, 53333, 58549, 373331, 409843, 1112431, 2868901, 7787017, 23478149, 54509119, 164347043, 446084831, 1150429301, 3122593817, 21858156719]

約数ペア:

[(1, 21858156719), (7, 3122593817), (19, 1150429301), (49, 446084831), (133, 164347043), (401, 54509119), (931, 23478149), (2807, 7787017), (7619, 2868901), (19649, 1112431), (53333, 409843), (58549, 373331)]