20854215

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20149}}^1$

素因数の和:20183

約数の個数: 24

約数和(自身を含む): 37720800

約数和(自身を除く): 16866585

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20149, 60447, 100745, 181341, 302235, 463427, 906705, 1390281, 2317135, 4170843, 6951405, 20854215]

約数ペア:

[(1, 20854215), (3, 6951405), (5, 4170843), (9, 2317135), (15, 1390281), (23, 906705), (45, 463427), (69, 302235), (115, 181341), (207, 100745), (345, 60447), (1035, 20149)]