64639539

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:561

約数の個数: 40

約数和(自身を含む): 102927440

約数和(自身を除く): 38287901

約数列:

[1, 3, 9, 19, 27, 57, 81, 97, 171, 291, 433, 513, 873, 1299, 1539, 1843, 2619, 3897, 5529, 7857, 8227, 11691, 16587, 24681, 35073, 42001, 49761, 74043, 126003, 149283, 222129, 378009, 666387, 798019, 1134027, 2394057, 3402081, 7182171, 21546513, 64639539]

約数ペア:

[(1, 64639539), (3, 21546513), (9, 7182171), (19, 3402081), (27, 2394057), (57, 1134027), (81, 798019), (97, 666387), (171, 378009), (291, 222129), (433, 149283), (513, 126003), (873, 74043), (1299, 49761), (1539, 42001), (1843, 35073), (2619, 24681), (3897, 16587), (5529, 11691), (7857, 8227)]