20393661

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{421}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 27777728

約数和(自身を除く): 7384067

約数列:

[1, 3, 67, 201, 241, 421, 723, 1263, 16147, 28207, 48441, 84621, 101461, 304383, 6797887, 20393661]

約数ペア:

[(1, 20393661), (3, 6797887), (67, 304383), (201, 101461), (241, 84621), (421, 48441), (723, 28207), (1263, 16147)]