20839994

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{1787}}^1$

素因数の和:1827

約数の個数: 32

約数和(自身を含む): 38620800

約数和(自身を除く): 17780806

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 343, 686, 833, 1666, 1787, 3574, 5831, 11662, 12509, 25018, 30379, 60758, 87563, 175126, 212653, 425306, 612941, 1225882, 1488571, 2977142, 10419997, 20839994]

約数ペア:

[(1, 20839994), (2, 10419997), (7, 2977142), (14, 1488571), (17, 1225882), (34, 612941), (49, 425306), (98, 212653), (119, 175126), (238, 87563), (343, 60758), (686, 30379), (833, 25018), (1666, 12509), (1787, 11662), (3574, 5831)]