31265451

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 54225600

約数和(自身を除く): 22960149

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 109, 157, 203, 261, 327, 471, 609, 763, 981, 1099, 1413, 1827, 2289, 3161, 3297, 4553, 6867, 9483, 9891, 13659, 17113, 22127, 28449, 31871, 40977, 51339, 66381, 95613, 119791, 154017, 199143, 286839, 359373, 496277, 1078119, 1488831, 3473939, 4466493, 10421817, 31265451]

約数ペア:

[(1, 31265451), (3, 10421817), (7, 4466493), (9, 3473939), (21, 1488831), (29, 1078119), (63, 496277), (87, 359373), (109, 286839), (157, 199143), (203, 154017), (261, 119791), (327, 95613), (471, 66381), (609, 51339), (763, 40977), (981, 31871), (1099, 28449), (1413, 22127), (1827, 17113), (2289, 13659), (3161, 9891), (3297, 9483), (4553, 6867)]