28305387

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 48162816

約数和(自身を除く): 19857429

約数列:

[1, 3, 9, 11, 23, 31, 33, 69, 93, 99, 207, 253, 279, 341, 401, 713, 759, 1023, 1203, 2139, 2277, 3069, 3609, 4411, 6417, 7843, 9223, 12431, 13233, 23529, 27669, 37293, 39699, 70587, 83007, 101453, 111879, 136741, 285913, 304359, 410223, 857739, 913077, 1230669, 2573217, 3145043, 9435129, 28305387]

約数ペア:

[(1, 28305387), (3, 9435129), (9, 3145043), (11, 2573217), (23, 1230669), (31, 913077), (33, 857739), (69, 410223), (93, 304359), (99, 285913), (207, 136741), (253, 111879), (279, 101453), (341, 83007), (401, 70587), (713, 39699), (759, 37293), (1023, 27669), (1203, 23529), (2139, 13233), (2277, 12431), (3069, 9223), (3609, 7843), (4411, 6417)]