12581289

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:674

約数の個数: 36

約数和(自身を含む): 21625344

約数和(自身を除く): 9044055

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 607, 987, 1821, 2303, 2961, 4249, 5463, 6909, 12747, 20727, 28529, 29743, 38241, 85587, 89229, 199703, 256761, 267687, 599109, 1397921, 1797327, 4193763, 12581289]

約数ペア:

[(1, 12581289), (3, 4193763), (7, 1797327), (9, 1397921), (21, 599109), (47, 267687), (49, 256761), (63, 199703), (141, 89229), (147, 85587), (329, 38241), (423, 29743), (441, 28529), (607, 20727), (987, 12747), (1821, 6909), (2303, 5463), (2961, 4249)]