217436895

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{757}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 407246112

約数和(自身を除く): 189809217

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 491, 585, 757, 1473, 2271, 2455, 3785, 4419, 6383, 6813, 7365, 9841, 11355, 19149, 22095, 29523, 31915, 34065, 49205, 57447, 88569, 95745, 147615, 287235, 371687, 442845, 1115061, 1858435, 3345183, 4831931, 5575305, 14495793, 16725915, 24159655, 43487379, 72478965, 217436895]

約数ペア:

[(1, 217436895), (3, 72478965), (5, 43487379), (9, 24159655), (13, 16725915), (15, 14495793), (39, 5575305), (45, 4831931), (65, 3345183), (117, 1858435), (195, 1115061), (491, 442845), (585, 371687), (757, 287235), (1473, 147615), (2271, 95745), (2455, 88569), (3785, 57447), (4419, 49205), (6383, 34065), (6813, 31915), (7365, 29523), (9841, 22095), (11355, 19149)]