18812235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 33572448

約数和(自身を除く): 14760213

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 169, 181, 195, 205, 507, 533, 543, 615, 845, 905, 1599, 2353, 2535, 2665, 2715, 6929, 7059, 7421, 7995, 11765, 20787, 22263, 30589, 34645, 35295, 37105, 91767, 96473, 103935, 111315, 152945, 289419, 458835, 482365, 1254149, 1447095, 3762447, 6270745, 18812235]

約数ペア:

[(1, 18812235), (3, 6270745), (5, 3762447), (13, 1447095), (15, 1254149), (39, 482365), (41, 458835), (65, 289419), (123, 152945), (169, 111315), (181, 103935), (195, 96473), (205, 91767), (507, 37105), (533, 35295), (543, 34645), (615, 30589), (845, 22263), (905, 20787), (1599, 11765), (2353, 7995), (2535, 7421), (2665, 7059), (2715, 6929)]