18213015

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 30456000

約数和(自身を除く): 12242985

約数列:

[1, 3, 5, 15, 29, 87, 145, 149, 281, 435, 447, 745, 843, 1405, 2235, 4215, 4321, 8149, 12963, 21605, 24447, 40745, 41869, 64815, 122235, 125607, 209345, 628035, 1214201, 3642603, 6071005, 18213015]

約数ペア:

[(1, 18213015), (3, 6071005), (5, 3642603), (15, 1214201), (29, 628035), (87, 209345), (145, 125607), (149, 122235), (281, 64815), (435, 41869), (447, 40745), (745, 24447), (843, 21605), (1405, 12963), (2235, 8149), (4215, 4321)]