20293515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3727}}^1$

素因数の和:3760

約数の個数: 36

約数和(自身を含む): 38674272

約数和(自身を除く): 18380757

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 605, 1089, 1815, 3727, 5445, 11181, 18635, 33543, 40997, 55905, 122991, 167715, 204985, 368973, 450967, 614955, 1352901, 1844865, 2254835, 4058703, 6764505, 20293515]

約数ペア:

[(1, 20293515), (3, 6764505), (5, 4058703), (9, 2254835), (11, 1844865), (15, 1352901), (33, 614955), (45, 450967), (55, 368973), (99, 204985), (121, 167715), (165, 122991), (363, 55905), (495, 40997), (605, 33543), (1089, 18635), (1815, 11181), (3727, 5445)]