20867895

素因数分解:

$3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{467}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 37290240

約数和(自身を除く): 16422345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 331, 467, 993, 1401, 1655, 2335, 2979, 4203, 4965, 7005, 8937, 12609, 14895, 21015, 44685, 63045, 154577, 463731, 772885, 1391193, 2318655, 4173579, 6955965, 20867895]

約数ペア:

[(1, 20867895), (3, 6955965), (5, 4173579), (9, 2318655), (15, 1391193), (27, 772885), (45, 463731), (135, 154577), (331, 63045), (467, 44685), (993, 21015), (1401, 14895), (1655, 12609), (2335, 8937), (2979, 7005), (4203, 4965)]