21790107

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1637}}^1$

素因数の和:1692

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 13590693

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 1637, 4437, 4911, 13311, 14733, 27829, 44199, 47473, 83487, 142419, 250461, 427257, 751383, 807041, 1281771, 2421123, 7263369, 21790107]

約数ペア:

[(1, 21790107), (3, 7263369), (9, 2421123), (17, 1281771), (27, 807041), (29, 751383), (51, 427257), (87, 250461), (153, 142419), (261, 83487), (459, 47473), (493, 44199), (783, 27829), (1479, 14733), (1637, 13311), (4437, 4911)]