28207641

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{653}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 50101632

約数和(自身を除く): 21893991

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 121, 187, 231, 357, 363, 561, 653, 847, 1309, 1959, 2057, 2541, 3927, 4571, 6171, 7183, 11101, 13713, 14399, 21549, 33303, 43197, 50281, 77707, 79013, 122111, 150843, 233121, 237039, 366333, 553091, 854777, 1343221, 1659273, 2564331, 4029663, 9402547, 28207641]

約数ペア:

[(1, 28207641), (3, 9402547), (7, 4029663), (11, 2564331), (17, 1659273), (21, 1343221), (33, 854777), (51, 553091), (77, 366333), (119, 237039), (121, 233121), (187, 150843), (231, 122111), (357, 79013), (363, 77707), (561, 50281), (653, 43197), (847, 33303), (1309, 21549), (1959, 14399), (2057, 13713), (2541, 11101), (3927, 7183), (4571, 6171)]