212912245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{12647}}^1$

素因数の和:12709

約数の個数: 32

約数和(自身を含む): 322979328

約数和(自身を除く): 110067083

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 2405, 3367, 12647, 16835, 63235, 88529, 164411, 442645, 467939, 822055, 1150877, 2339695, 3275573, 5754385, 6083207, 16377865, 30416035, 42582449, 212912245]

約数ペア:

[(1, 212912245), (5, 42582449), (7, 30416035), (13, 16377865), (35, 6083207), (37, 5754385), (65, 3275573), (91, 2339695), (185, 1150877), (259, 822055), (455, 467939), (481, 442645), (1295, 164411), (2405, 88529), (3367, 63235), (12647, 16835)]