161755713

素因数分解:

$3^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 277264000

約数和(自身を除く): 115508287

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 343, 427, 441, 549, 859, 1029, 1281, 2577, 2989, 3087, 3843, 6013, 7731, 8967, 18039, 20923, 26901, 42091, 52399, 54117, 62769, 126273, 157197, 188307, 294637, 366793, 378819, 471591, 883911, 1100379, 2567551, 2651733, 3301137, 7702653, 17972857, 23107959, 53918571, 161755713]

約数ペア:

[(1, 161755713), (3, 53918571), (7, 23107959), (9, 17972857), (21, 7702653), (49, 3301137), (61, 2651733), (63, 2567551), (147, 1100379), (183, 883911), (343, 471591), (427, 378819), (441, 366793), (549, 294637), (859, 188307), (1029, 157197), (1281, 126273), (2577, 62769), (2989, 54117), (3087, 52399), (3843, 42091), (6013, 26901), (7731, 20923), (8967, 18039)]