28387884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1021}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 76004096

約数和(自身を除く): 47616212

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 331, 662, 993, 1021, 1324, 1986, 2042, 2317, 3063, 3972, 4084, 4634, 6126, 6951, 7147, 9268, 12252, 13902, 14294, 21441, 27804, 28588, 42882, 85764, 337951, 675902, 1013853, 1351804, 2027706, 2365657, 4055412, 4731314, 7096971, 9462628, 14193942, 28387884]

約数ペア:

[(1, 28387884), (2, 14193942), (3, 9462628), (4, 7096971), (6, 4731314), (7, 4055412), (12, 2365657), (14, 2027706), (21, 1351804), (28, 1013853), (42, 675902), (84, 337951), (331, 85764), (662, 42882), (993, 28588), (1021, 27804), (1324, 21441), (1986, 14294), (2042, 13902), (2317, 12252), (3063, 9268), (3972, 7147), (4084, 6951), (4634, 6126)]