21002786

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 39787200

約数和(自身を除く): 18784414

約数列:

[1, 2, 7, 14, 17, 29, 34, 58, 119, 179, 203, 238, 289, 358, 406, 493, 578, 986, 1253, 2023, 2506, 3043, 3451, 4046, 5191, 6086, 6902, 8381, 10382, 16762, 21301, 36337, 42602, 51731, 58667, 72674, 88247, 103462, 117334, 176494, 362117, 617729, 724234, 1235458, 1500199, 3000398, 10501393, 21002786]

約数ペア:

[(1, 21002786), (2, 10501393), (7, 3000398), (14, 1500199), (17, 1235458), (29, 724234), (34, 617729), (58, 362117), (119, 176494), (179, 117334), (203, 103462), (238, 88247), (289, 72674), (358, 58667), (406, 51731), (493, 42602), (578, 36337), (986, 21301), (1253, 16762), (2023, 10382), (2506, 8381), (3043, 6902), (3451, 6086), (4046, 5191)]