27720221

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{277}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 30691200

約数和(自身を除く): 2970979

約数列:

[1, 19, 23, 229, 277, 437, 4351, 5263, 5267, 6371, 63433, 100073, 121049, 1205227, 1458959, 27720221]

約数ペア:

[(1, 27720221), (19, 1458959), (23, 1205227), (229, 121049), (277, 100073), (437, 63433), (4351, 6371), (5263, 5267)]