21151704

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{919}}^1$

素因数の和:1072

約数の個数: 64

約数和(自身を含む): 60940800

約数和(自身を除く): 39789096

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 137, 168, 274, 411, 548, 822, 919, 959, 1096, 1644, 1838, 1918, 2757, 2877, 3288, 3676, 3836, 5514, 5754, 6433, 7352, 7672, 11028, 11508, 12866, 19299, 22056, 23016, 25732, 38598, 51464, 77196, 125903, 154392, 251806, 377709, 503612, 755418, 881321, 1007224, 1510836, 1762642, 2643963, 3021672, 3525284, 5287926, 7050568, 10575852, 21151704]

約数ペア:

[(1, 21151704), (2, 10575852), (3, 7050568), (4, 5287926), (6, 3525284), (7, 3021672), (8, 2643963), (12, 1762642), (14, 1510836), (21, 1007224), (24, 881321), (28, 755418), (42, 503612), (56, 377709), (84, 251806), (137, 154392), (168, 125903), (274, 77196), (411, 51464), (548, 38598), (822, 25732), (919, 23016), (959, 22056), (1096, 19299), (1644, 12866), (1838, 11508), (1918, 11028), (2757, 7672), (2877, 7352), (3288, 6433), (3676, 5754), (3836, 5514)]