18146121

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 30369600

約数和(自身を除く): 12223479

約数列:

[1, 3, 7, 19, 21, 49, 57, 73, 89, 133, 147, 219, 267, 399, 511, 623, 931, 1387, 1533, 1691, 1869, 2793, 3577, 4161, 4361, 5073, 6497, 9709, 10731, 11837, 13083, 19491, 29127, 35511, 45479, 67963, 82859, 123443, 136437, 203889, 248577, 318353, 370329, 864101, 955059, 2592303, 6048707, 18146121]

約数ペア:

[(1, 18146121), (3, 6048707), (7, 2592303), (19, 955059), (21, 864101), (49, 370329), (57, 318353), (73, 248577), (89, 203889), (133, 136437), (147, 123443), (219, 82859), (267, 67963), (399, 45479), (511, 35511), (623, 29127), (931, 19491), (1387, 13083), (1533, 11837), (1691, 10731), (1869, 9709), (2793, 6497), (3577, 5073), (4161, 4361)]