28728357

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 19534683

約数列:

[1, 3, 7, 21, 23, 29, 49, 69, 87, 147, 161, 203, 293, 483, 609, 667, 879, 1127, 1421, 2001, 2051, 3381, 4263, 4669, 6153, 6739, 8497, 14007, 14357, 20217, 25491, 32683, 43071, 47173, 59479, 98049, 141519, 178437, 195431, 330211, 416353, 586293, 990633, 1249059, 1368017, 4104051, 9576119, 28728357]

約数ペア:

[(1, 28728357), (3, 9576119), (7, 4104051), (21, 1368017), (23, 1249059), (29, 990633), (49, 586293), (69, 416353), (87, 330211), (147, 195431), (161, 178437), (203, 141519), (293, 98049), (483, 59479), (609, 47173), (667, 43071), (879, 32683), (1127, 25491), (1421, 20217), (2001, 14357), (2051, 14007), (3381, 8497), (4263, 6739), (4669, 6153)]