18880974735

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1116887}}^1$

素因数の和:1116932

約数の個数: 48

約数和(自身を含む): 36669666816

約数和(自身を除く): 17788692081

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1127, 2415, 3381, 5635, 16905, 1116887, 3350661, 5584435, 7818209, 16753305, 23454627, 25688401, 39091045, 54727463, 77065203, 117273135, 128442005, 164182389, 179818807, 273637315, 385326015, 539456421, 820911945, 899094035, 1258731649, 2697282105, 3776194947, 6293658245, 18880974735]

約数ペア:

[(1, 18880974735), (3, 6293658245), (5, 3776194947), (7, 2697282105), (15, 1258731649), (21, 899094035), (23, 820911945), (35, 539456421), (49, 385326015), (69, 273637315), (105, 179818807), (115, 164182389), (147, 128442005), (161, 117273135), (245, 77065203), (345, 54727463), (483, 39091045), (735, 25688401), (805, 23454627), (1127, 16753305), (2415, 7818209), (3381, 5584435), (5635, 3350661), (16905, 1116887)]