21209132

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2621}}^1$

素因数の和:2666

約数の個数: 36

約数和(自身を含む): 45077424

約数和(自身を除く): 23868292

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2621, 4046, 5242, 8092, 10484, 18347, 36694, 44557, 73388, 89114, 178228, 311899, 623798, 757469, 1247596, 1514938, 3029876, 5302283, 10604566, 21209132]

約数ペア:

[(1, 21209132), (2, 10604566), (4, 5302283), (7, 3029876), (14, 1514938), (17, 1247596), (28, 757469), (34, 623798), (68, 311899), (119, 178228), (238, 89114), (289, 73388), (476, 44557), (578, 36694), (1156, 18347), (2023, 10484), (2621, 8092), (4046, 5242)]