20886915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2969}}^1$

素因数の和:3051

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 17889405

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 2969, 7035, 8907, 14845, 20783, 44535, 62349, 103915, 198923, 311745, 596769, 994615, 1392461, 2983845, 4177383, 6962305, 20886915]

約数ペア:

[(1, 20886915), (3, 6962305), (5, 4177383), (7, 2983845), (15, 1392461), (21, 994615), (35, 596769), (67, 311745), (105, 198923), (201, 103915), (335, 62349), (469, 44535), (1005, 20783), (1407, 14845), (2345, 8907), (2969, 7035)]