645677221

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{12589}}^1$

素因数の和:13044

約数の個数: 16

約数和(自身を含む): 783198720

約数和(自身を除く): 137521499

約数列:

[1, 7, 17, 119, 431, 3017, 7327, 12589, 51289, 88123, 214013, 1498091, 5425859, 37981013, 92239603, 645677221]

約数ペア:

[(1, 645677221), (7, 92239603), (17, 37981013), (119, 5425859), (431, 1498091), (3017, 214013), (7327, 88123), (12589, 51289)]