211329867

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3457}}^1$

素因数の和:3579

約数の個数: 32

約数和(自身を含む): 334623744

約数和(自身を除く): 123293877

約数列:

[1, 3, 7, 21, 41, 71, 123, 213, 287, 497, 861, 1491, 2911, 3457, 8733, 10371, 20377, 24199, 61131, 72597, 141737, 245447, 425211, 736341, 992159, 1718129, 2976477, 5154387, 10063327, 30189981, 70443289, 211329867]

約数ペア:

[(1, 211329867), (3, 70443289), (7, 30189981), (21, 10063327), (41, 5154387), (71, 2976477), (123, 1718129), (213, 992159), (287, 736341), (497, 425211), (861, 245447), (1491, 141737), (2911, 72597), (3457, 61131), (8733, 24199), (10371, 20377)]