20868315

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1039}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 36341760

約数和(自身を除く): 15473445

約数列:

[1, 3, 5, 13, 15, 39, 65, 103, 195, 309, 515, 1039, 1339, 1545, 3117, 4017, 5195, 6695, 13507, 15585, 20085, 40521, 67535, 107017, 202605, 321051, 535085, 1391221, 1605255, 4173663, 6956105, 20868315]

約数ペア:

[(1, 20868315), (3, 6956105), (5, 4173663), (13, 1605255), (15, 1391221), (39, 535085), (65, 321051), (103, 202605), (195, 107017), (309, 67535), (515, 40521), (1039, 20085), (1339, 15585), (1545, 13507), (3117, 6695), (4017, 5195)]