21731968

素因数分解:

$2^7\times {\mathrm{41}}^2\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 48

約数和(自身を含む): 44815230

約数和(自身を除く): 23083262

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 101, 128, 164, 202, 328, 404, 656, 808, 1312, 1616, 1681, 2624, 3232, 3362, 4141, 5248, 6464, 6724, 8282, 12928, 13448, 16564, 26896, 33128, 53792, 66256, 107584, 132512, 169781, 215168, 265024, 339562, 530048, 679124, 1358248, 2716496, 5432992, 10865984, 21731968]

約数ペア:

[(1, 21731968), (2, 10865984), (4, 5432992), (8, 2716496), (16, 1358248), (32, 679124), (41, 530048), (64, 339562), (82, 265024), (101, 215168), (128, 169781), (164, 132512), (202, 107584), (328, 66256), (404, 53792), (656, 33128), (808, 26896), (1312, 16564), (1616, 13448), (1681, 12928), (2624, 8282), (3232, 6724), (3362, 6464), (4141, 5248)]