21006984208

素因数分解:

$2^4\times 7^1\times {\mathrm{887}}^1\times {\mathrm{211457}}^1$

素因数の和:212359

約数の個数: 40

約数和(自身を含む): 46568126592

約数和(自身を除く): 25561142384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 887, 1774, 3548, 6209, 7096, 12418, 14192, 24836, 49672, 99344, 211457, 422914, 845828, 1480199, 1691656, 2960398, 3383312, 5920796, 11841592, 23683184, 187562359, 375124718, 750249436, 1312936513, 1500498872, 2625873026, 3000997744, 5251746052, 10503492104, 21006984208]

約数ペア:

[(1, 21006984208), (2, 10503492104), (4, 5251746052), (7, 3000997744), (8, 2625873026), (14, 1500498872), (16, 1312936513), (28, 750249436), (56, 375124718), (112, 187562359), (887, 23683184), (1774, 11841592), (3548, 5920796), (6209, 3383312), (7096, 2960398), (12418, 1691656), (14192, 1480199), (24836, 845828), (49672, 422914), (99344, 211457)]