18390591

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 28728000

約数和(自身を除く): 10337409

約数列:

[1, 3, 9, 27, 37, 41, 111, 123, 333, 369, 449, 999, 1107, 1347, 1517, 4041, 4551, 12123, 13653, 16613, 18409, 40959, 49839, 55227, 149517, 165681, 448551, 497043, 681133, 2043399, 6130197, 18390591]

約数ペア:

[(1, 18390591), (3, 6130197), (9, 2043399), (27, 681133), (37, 497043), (41, 448551), (111, 165681), (123, 149517), (333, 55227), (369, 49839), (449, 40959), (999, 18409), (1107, 16613), (1347, 13653), (1517, 12123), (4041, 4551)]