2113993721

素因数分解:

$7^3\times {\mathrm{821}}^1\times {\mathrm{7507}}^1$

素因数の和:8349

約数の個数: 16

約数和(自身を含む): 2468630400

約数和(自身を除く): 354636679

約数列:

[1, 7, 49, 343, 821, 5747, 7507, 40229, 52549, 281603, 367843, 2574901, 6163247, 43142729, 301999103, 2113993721]

約数ペア:

[(1, 2113993721), (7, 301999103), (49, 43142729), (343, 6163247), (821, 2574901), (5747, 367843), (7507, 281603), (40229, 52549)]