19946925

素因数分解:

$3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1019}}^1$

素因数の和:1067

約数の個数: 48

約数和(自身を含む): 37944000

約数和(自身を除く): 17997075

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 145, 225, 261, 435, 675, 725, 783, 1019, 1305, 2175, 3057, 3915, 5095, 6525, 9171, 15285, 19575, 25475, 27513, 29551, 45855, 76425, 88653, 137565, 147755, 229275, 265959, 443265, 687825, 738775, 797877, 1329795, 2216325, 3989385, 6648975, 19946925]

約数ペア:

[(1, 19946925), (3, 6648975), (5, 3989385), (9, 2216325), (15, 1329795), (25, 797877), (27, 738775), (29, 687825), (45, 443265), (75, 265959), (87, 229275), (135, 147755), (145, 137565), (225, 88653), (261, 76425), (435, 45855), (675, 29551), (725, 27513), (783, 25475), (1019, 19575), (1305, 15285), (2175, 9171), (3057, 6525), (3915, 5095)]