20761424

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 40

約数和(自身を含む): 41434848

約数和(自身を除く): 20673424

約数列:

[1, 2, 4, 8, 16, 67, 107, 134, 181, 214, 268, 362, 428, 536, 724, 856, 1072, 1448, 1712, 2896, 7169, 12127, 14338, 19367, 24254, 28676, 38734, 48508, 57352, 77468, 97016, 114704, 154936, 194032, 309872, 1297589, 2595178, 5190356, 10380712, 20761424]

約数ペア:

[(1, 20761424), (2, 10380712), (4, 5190356), (8, 2595178), (16, 1297589), (67, 309872), (107, 194032), (134, 154936), (181, 114704), (214, 97016), (268, 77468), (362, 57352), (428, 48508), (536, 38734), (724, 28676), (856, 24254), (1072, 19367), (1448, 14338), (1712, 12127), (2896, 7169)]