216221655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{2503}}^1$

素因数の和:2967

約数の個数: 32

約数和(自身を含む): 373556736

約数和(自身を除く): 157335081

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 443, 1329, 2215, 2503, 5759, 6645, 7509, 12515, 17277, 28795, 32539, 37545, 86385, 97617, 162695, 488085, 1108829, 3326487, 5544145, 14414777, 16632435, 43244331, 72073885, 216221655]

約数ペア:

[(1, 216221655), (3, 72073885), (5, 43244331), (13, 16632435), (15, 14414777), (39, 5544145), (65, 3326487), (195, 1108829), (443, 488085), (1329, 162695), (2215, 97617), (2503, 86385), (5759, 37545), (6645, 32539), (7509, 28795), (12515, 17277)]