18786009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 29113344

約数和(自身を除く): 10327335

約数列:

[1, 3, 11, 23, 33, 53, 69, 159, 253, 467, 583, 759, 1219, 1401, 1749, 3657, 5137, 10741, 13409, 15411, 24751, 32223, 40227, 74253, 118151, 272261, 354453, 569273, 816783, 1707819, 6262003, 18786009]

約数ペア:

[(1, 18786009), (3, 6262003), (11, 1707819), (23, 816783), (33, 569273), (53, 354453), (69, 272261), (159, 118151), (253, 74253), (467, 40227), (583, 32223), (759, 24751), (1219, 15411), (1401, 13409), (1749, 10741), (3657, 5137)]