20407518

素因数分解:

$2^1\times 3^3\times {\mathrm{307}}^1\times {\mathrm{1231}}^1$

素因数の和:1549

約数の個数: 32

約数和(自身を含む): 45534720

約数和(自身を除く): 25127202

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 307, 614, 921, 1231, 1842, 2462, 2763, 3693, 5526, 7386, 8289, 11079, 16578, 22158, 33237, 66474, 377917, 755834, 1133751, 2267502, 3401253, 6802506, 10203759, 20407518]

約数ペア:

[(1, 20407518), (2, 10203759), (3, 6802506), (6, 3401253), (9, 2267502), (18, 1133751), (27, 755834), (54, 377917), (307, 66474), (614, 33237), (921, 22158), (1231, 16578), (1842, 11079), (2462, 8289), (2763, 7386), (3693, 5526)]