138928587

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1\times {\mathrm{337}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 216233472

約数和(自身を除く): 77304885

約数列:

[1, 3, 7, 21, 67, 201, 293, 337, 469, 879, 1011, 1407, 2051, 2359, 6153, 7077, 19631, 22579, 58893, 67737, 98741, 137417, 158053, 296223, 412251, 474159, 691187, 2073561, 6615647, 19846941, 46309529, 138928587]

約数ペア:

[(1, 138928587), (3, 46309529), (7, 19846941), (21, 6615647), (67, 2073561), (201, 691187), (293, 474159), (337, 412251), (469, 296223), (879, 158053), (1011, 137417), (1407, 98741), (2051, 67737), (2359, 58893), (6153, 22579), (7077, 19631)]