21223740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1277}}^1$

素因数の和:1566

約数の個数: 48

約数和(自身を含む): 59687712

約数和(自身を除く): 38463972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 277, 554, 831, 1108, 1277, 1385, 1662, 2554, 2770, 3324, 3831, 4155, 5108, 5540, 6385, 7662, 8310, 12770, 15324, 16620, 19155, 25540, 38310, 76620, 353729, 707458, 1061187, 1414916, 1768645, 2122374, 3537290, 4244748, 5305935, 7074580, 10611870, 21223740]

約数ペア:

[(1, 21223740), (2, 10611870), (3, 7074580), (4, 5305935), (5, 4244748), (6, 3537290), (10, 2122374), (12, 1768645), (15, 1414916), (20, 1061187), (30, 707458), (60, 353729), (277, 76620), (554, 38310), (831, 25540), (1108, 19155), (1277, 16620), (1385, 15324), (1662, 12770), (2554, 8310), (2770, 7662), (3324, 6385), (3831, 5540), (4155, 5108)]