18513873

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4259}}^1$

素因数の和:4298

約数の個数: 32

約数和(自身を含む): 32716800

約数和(自身を除く): 14202927

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4259, 4347, 12777, 29813, 38331, 89439, 97957, 114993, 268317, 293871, 685699, 804951, 881613, 2057097, 2644839, 6171291, 18513873]

約数ペア:

[(1, 18513873), (3, 6171291), (7, 2644839), (9, 2057097), (21, 881613), (23, 804951), (27, 685699), (63, 293871), (69, 268317), (161, 114993), (189, 97957), (207, 89439), (483, 38331), (621, 29813), (1449, 12777), (4259, 4347)]