21743475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:824

約数の個数: 48

約数和(自身を含む): 40101600

約数和(自身を除く): 18358125

約数列:

[1, 3, 5, 13, 15, 25, 29, 39, 65, 75, 87, 145, 195, 325, 377, 435, 725, 769, 975, 1131, 1885, 2175, 2307, 3845, 5655, 9425, 9997, 11535, 19225, 22301, 28275, 29991, 49985, 57675, 66903, 111505, 149955, 249925, 289913, 334515, 557525, 749775, 869739, 1449565, 1672575, 4348695, 7247825, 21743475]

約数ペア:

[(1, 21743475), (3, 7247825), (5, 4348695), (13, 1672575), (15, 1449565), (25, 869739), (29, 749775), (39, 557525), (65, 334515), (75, 289913), (87, 249925), (145, 149955), (195, 111505), (325, 66903), (377, 57675), (435, 49985), (725, 29991), (769, 28275), (975, 22301), (1131, 19225), (1885, 11535), (2175, 9997), (2307, 9425), (3845, 5655)]