21064065

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6719}}^1$

素因数の和:6757

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17643135

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6719, 20157, 33595, 73909, 100785, 127661, 221727, 369545, 382983, 638305, 1108635, 1404271, 1914915, 4212813, 7021355, 21064065]

約数ペア:

[(1, 21064065), (3, 7021355), (5, 4212813), (11, 1914915), (15, 1404271), (19, 1108635), (33, 638305), (55, 382983), (57, 369545), (95, 221727), (165, 127661), (209, 100785), (285, 73909), (627, 33595), (1045, 20157), (3135, 6719)]