289889089

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1416

約数の個数: 16

約数和(自身を含む): 335650176

約数和(自身を除く): 45761087

約数列:

[1, 7, 101, 521, 707, 787, 3647, 5509, 52621, 79487, 368347, 410027, 556409, 2870189, 41412727, 289889089]

約数ペア:

[(1, 289889089), (7, 41412727), (101, 2870189), (521, 556409), (707, 410027), (787, 368347), (3647, 79487), (5509, 52621)]