21737872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2549}}^1$

素因数の和:2611

約数の個数: 40

約数和(自身を含む): 46481400

約数和(自身を除く): 24743528

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2549, 4264, 5098, 8528, 10196, 20392, 33137, 40784, 66274, 104509, 132548, 209018, 265096, 418036, 530192, 836072, 1358617, 1672144, 2717234, 5434468, 10868936, 21737872]

約数ペア:

[(1, 21737872), (2, 10868936), (4, 5434468), (8, 2717234), (13, 1672144), (16, 1358617), (26, 836072), (41, 530192), (52, 418036), (82, 265096), (104, 209018), (164, 132548), (208, 104509), (328, 66274), (533, 40784), (656, 33137), (1066, 20392), (2132, 10196), (2549, 8528), (4264, 5098)]