20880804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{751}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 55924736

約数和(自身を除く): 35043932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 331, 662, 751, 993, 1324, 1502, 1986, 2253, 2317, 3004, 3972, 4506, 4634, 5257, 6951, 9012, 9268, 10514, 13902, 15771, 21028, 27804, 31542, 63084, 248581, 497162, 745743, 994324, 1491486, 1740067, 2982972, 3480134, 5220201, 6960268, 10440402, 20880804]

約数ペア:

[(1, 20880804), (2, 10440402), (3, 6960268), (4, 5220201), (6, 3480134), (7, 2982972), (12, 1740067), (14, 1491486), (21, 994324), (28, 745743), (42, 497162), (84, 248581), (331, 63084), (662, 31542), (751, 27804), (993, 21028), (1324, 15771), (1502, 13902), (1986, 10514), (2253, 9268), (2317, 9012), (3004, 6951), (3972, 5257), (4506, 4634)]