216808215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{10391}}^1$

素因数の和:10519

約数の個数: 32

約数和(自身を含む): 377104896

約数和(自身を除く): 160296681

約数列:

[1, 3, 5, 13, 15, 39, 65, 107, 195, 321, 535, 1391, 1605, 4173, 6955, 10391, 20865, 31173, 51955, 135083, 155865, 405249, 675415, 1111837, 2026245, 3335511, 5559185, 14453881, 16677555, 43361643, 72269405, 216808215]

約数ペア:

[(1, 216808215), (3, 72269405), (5, 43361643), (13, 16677555), (15, 14453881), (39, 5559185), (65, 3335511), (107, 2026245), (195, 1111837), (321, 675415), (535, 405249), (1391, 155865), (1605, 135083), (4173, 51955), (6955, 31173), (10391, 20865)]