61821389

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{9631}}^1$

素因数の和:9776

約数の個数: 12

約数和(自身を含む): 72471168

約数和(自身を除く): 10649779

約数列:

[1, 7, 49, 131, 917, 6419, 9631, 67417, 471919, 1261661, 8831627, 61821389]

約数ペア:

[(1, 61821389), (7, 8831627), (49, 1261661), (131, 471919), (917, 67417), (6419, 9631)]