20797876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20570444

約数列:

[1, 2, 4, 11, 22, 44, 47, 89, 94, 113, 178, 188, 226, 356, 452, 517, 979, 1034, 1243, 1958, 2068, 2486, 3916, 4183, 4972, 5311, 8366, 10057, 10622, 16732, 20114, 21244, 40228, 46013, 58421, 92026, 110627, 116842, 184052, 221254, 233684, 442508, 472679, 945358, 1890716, 5199469, 10398938, 20797876]

約数ペア:

[(1, 20797876), (2, 10398938), (4, 5199469), (11, 1890716), (22, 945358), (44, 472679), (47, 442508), (89, 233684), (94, 221254), (113, 184052), (178, 116842), (188, 110627), (226, 92026), (356, 58421), (452, 46013), (517, 40228), (979, 21244), (1034, 20114), (1243, 16732), (1958, 10622), (2068, 10057), (2486, 8366), (3916, 5311), (4183, 4972)]