18161505

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 33306624

約数和(自身を除く): 15145119

約数列:

[1, 3, 5, 9, 15, 31, 45, 47, 93, 141, 155, 235, 277, 279, 423, 465, 705, 831, 1385, 1395, 1457, 2115, 2493, 4155, 4371, 7285, 8587, 12465, 13019, 13113, 21855, 25761, 39057, 42935, 65095, 65565, 77283, 117171, 128805, 195285, 386415, 403589, 585855, 1210767, 2017945, 3632301, 6053835, 18161505]

約数ペア:

[(1, 18161505), (3, 6053835), (5, 3632301), (9, 2017945), (15, 1210767), (31, 585855), (45, 403589), (47, 386415), (93, 195285), (141, 128805), (155, 117171), (235, 77283), (277, 65565), (279, 65095), (423, 42935), (465, 39057), (705, 25761), (831, 21855), (1385, 13113), (1395, 13019), (1457, 12465), (2115, 8587), (2493, 7285), (4155, 4371)]