215371415

素因数分解:

$5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{4051}}^1$

素因数の和:4108

約数の個数: 32

約数和(自身を含む): 311193600

約数和(自身を除く): 95822185

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 343, 1085, 1519, 1715, 4051, 7595, 10633, 20255, 28357, 53165, 125581, 141785, 198499, 627905, 879067, 992495, 1389493, 4395335, 6153469, 6947465, 30767345, 43074283, 215371415]

約数ペア:

[(1, 215371415), (5, 43074283), (7, 30767345), (31, 6947465), (35, 6153469), (49, 4395335), (155, 1389493), (217, 992495), (245, 879067), (343, 627905), (1085, 198499), (1519, 141785), (1715, 125581), (4051, 53165), (7595, 28357), (10633, 20255)]