20801642

素因数分解:

$2^1\times {\mathrm{17}}^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 32

約数和(自身を含む): 34765200

約数和(自身を除く): 13963558

約数列:

[1, 2, 17, 29, 34, 58, 73, 146, 289, 493, 578, 986, 1241, 2117, 2482, 4234, 4913, 8381, 9826, 16762, 21097, 35989, 42194, 71978, 142477, 284954, 358649, 611813, 717298, 1223626, 10400821, 20801642]

約数ペア:

[(1, 20801642), (2, 10400821), (17, 1223626), (29, 717298), (34, 611813), (58, 358649), (73, 284954), (146, 142477), (289, 71978), (493, 42194), (578, 35989), (986, 21097), (1241, 16762), (2117, 9826), (2482, 8381), (4234, 4913)]