21131068

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 24156356

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 103, 119, 206, 238, 412, 431, 476, 721, 862, 1442, 1724, 1751, 2884, 3017, 3502, 6034, 7004, 7327, 12068, 12257, 14654, 24514, 29308, 44393, 49028, 51289, 88786, 102578, 177572, 205156, 310751, 621502, 754681, 1243004, 1509362, 3018724, 5282767, 10565534, 21131068]

約数ペア:

[(1, 21131068), (2, 10565534), (4, 5282767), (7, 3018724), (14, 1509362), (17, 1243004), (28, 754681), (34, 621502), (68, 310751), (103, 205156), (119, 177572), (206, 102578), (238, 88786), (412, 51289), (431, 49028), (476, 44393), (721, 29308), (862, 24514), (1442, 14654), (1724, 12257), (1751, 12068), (2884, 7327), (3017, 7004), (3502, 6034)]