18997245

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 36728640

約数和(自身を除く): 17731395

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1307, 1615, 2907, 3921, 4845, 6535, 11763, 14535, 19605, 22219, 24833, 58815, 66657, 74499, 111095, 124165, 199971, 223497, 333285, 372495, 422161, 999855, 1117485, 1266483, 2110805, 3799449, 6332415, 18997245]

約数ペア:

[(1, 18997245), (3, 6332415), (5, 3799449), (9, 2110805), (15, 1266483), (17, 1117485), (19, 999855), (45, 422161), (51, 372495), (57, 333285), (85, 223497), (95, 199971), (153, 124165), (171, 111095), (255, 74499), (285, 66657), (323, 58815), (765, 24833), (855, 22219), (969, 19605), (1307, 14535), (1615, 11763), (2907, 6535), (3921, 4845)]