20816026

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20655974

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 59, 77, 79, 118, 154, 158, 203, 319, 406, 413, 553, 638, 649, 826, 869, 1106, 1298, 1711, 1738, 2233, 2291, 3422, 4466, 4543, 4582, 4661, 6083, 9086, 9322, 11977, 12166, 16037, 18821, 23954, 25201, 32074, 32627, 37642, 50402, 51271, 65254, 102542, 131747, 135169, 176407, 263494, 270338, 352814, 358897, 717794, 946183, 1486859, 1892366, 2973718, 10408013, 20816026]

約数ペア:

[(1, 20816026), (2, 10408013), (7, 2973718), (11, 1892366), (14, 1486859), (22, 946183), (29, 717794), (58, 358897), (59, 352814), (77, 270338), (79, 263494), (118, 176407), (154, 135169), (158, 131747), (203, 102542), (319, 65254), (406, 51271), (413, 50402), (553, 37642), (638, 32627), (649, 32074), (826, 25201), (869, 23954), (1106, 18821), (1298, 16037), (1711, 12166), (1738, 11977), (2233, 9322), (2291, 9086), (3422, 6083), (4466, 4661), (4543, 4582)]