28409433

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 42430080

約数和(自身を除く): 14020647

約数列:

[1, 3, 13, 39, 41, 109, 123, 163, 327, 489, 533, 1417, 1599, 2119, 4251, 4469, 6357, 6683, 13407, 17767, 20049, 53301, 58097, 86879, 174291, 230971, 260637, 692913, 728447, 2185341, 9469811, 28409433]

約数ペア:

[(1, 28409433), (3, 9469811), (13, 2185341), (39, 728447), (41, 692913), (109, 260637), (123, 230971), (163, 174291), (327, 86879), (489, 58097), (533, 53301), (1417, 20049), (1599, 17767), (2119, 13407), (4251, 6683), (4469, 6357)]