12840417

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 48

約数和(自身を含む): 21235200

約数和(自身を除く): 8394783

約数列:

[1, 3, 9, 23, 27, 29, 31, 69, 87, 93, 207, 261, 279, 529, 621, 667, 713, 783, 837, 899, 1587, 2001, 2139, 2697, 4761, 6003, 6417, 8091, 14283, 15341, 16399, 18009, 19251, 20677, 24273, 46023, 49197, 62031, 138069, 147591, 186093, 414207, 442773, 475571, 558279, 1426713, 4280139, 12840417]

約数ペア:

[(1, 12840417), (3, 4280139), (9, 1426713), (23, 558279), (27, 475571), (29, 442773), (31, 414207), (69, 186093), (87, 147591), (93, 138069), (207, 62031), (261, 49197), (279, 46023), (529, 24273), (621, 20677), (667, 19251), (713, 18009), (783, 16399), (837, 15341), (899, 14283), (1587, 8091), (2001, 6417), (2139, 6003), (2697, 4761)]