20865945

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1951}}^1$

素因数の和:2013

約数の個数: 32

約数和(自身を含む): 35979264

約数和(自身を除く): 15113319

約数列:

[1, 3, 5, 15, 23, 31, 69, 93, 115, 155, 345, 465, 713, 1951, 2139, 3565, 5853, 9755, 10695, 29265, 44873, 60481, 134619, 181443, 224365, 302405, 673095, 907215, 1391063, 4173189, 6955315, 20865945]

約数ペア:

[(1, 20865945), (3, 6955315), (5, 4173189), (15, 1391063), (23, 907215), (31, 673095), (69, 302405), (93, 224365), (115, 181443), (155, 134619), (345, 60481), (465, 44873), (713, 29265), (1951, 10695), (2139, 9755), (3565, 5853)]