216908145

素因数分解:

$3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{23981}}^1$

素因数の和:24062

約数の個数: 32

約数和(自身を含む): 391386240

約数和(自身を除く): 174478095

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 135, 201, 335, 603, 1005, 1809, 3015, 9045, 23981, 71943, 119905, 215829, 359715, 647487, 1079145, 1606727, 3237435, 4820181, 8033635, 14460543, 24100905, 43381629, 72302715, 216908145]

約数ペア:

[(1, 216908145), (3, 72302715), (5, 43381629), (9, 24100905), (15, 14460543), (27, 8033635), (45, 4820181), (67, 3237435), (135, 1606727), (201, 1079145), (335, 647487), (603, 359715), (1005, 215829), (1809, 119905), (3015, 71943), (9045, 23981)]