21206508

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 52429440

約数和(自身を除く): 31222932

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 281, 331, 562, 662, 843, 993, 1124, 1324, 1686, 1986, 3372, 3972, 5339, 6289, 10678, 12578, 16017, 18867, 21356, 25156, 32034, 37734, 64068, 75468, 93011, 186022, 279033, 372044, 558066, 1116132, 1767209, 3534418, 5301627, 7068836, 10603254, 21206508]

約数ペア:

[(1, 21206508), (2, 10603254), (3, 7068836), (4, 5301627), (6, 3534418), (12, 1767209), (19, 1116132), (38, 558066), (57, 372044), (76, 279033), (114, 186022), (228, 93011), (281, 75468), (331, 64068), (562, 37734), (662, 32034), (843, 25156), (993, 21356), (1124, 18867), (1324, 16017), (1686, 12578), (1986, 10678), (3372, 6289), (3972, 5339)]