21408338

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 39118464

約数和(自身を除く): 17710126

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 293, 307, 586, 614, 2051, 2149, 4102, 4298, 4981, 5219, 9962, 10438, 34867, 36533, 69734, 73066, 89951, 179902, 629657, 1259314, 1529167, 3058334, 10704169, 21408338]

約数ペア:

[(1, 21408338), (2, 10704169), (7, 3058334), (14, 1529167), (17, 1259314), (34, 629657), (119, 179902), (238, 89951), (293, 73066), (307, 69734), (586, 36533), (614, 34867), (2051, 10438), (2149, 9962), (4102, 5219), (4298, 4981)]