555778881

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{3271}}^1$

素因数の和:3347

約数の個数: 64

約数和(自身を含む): 1005158400

約数和(自身を除く): 449379519

約数列:

[1, 3, 7, 9, 21, 27, 29, 31, 63, 87, 93, 189, 203, 217, 261, 279, 609, 651, 783, 837, 899, 1827, 1953, 2697, 3271, 5481, 5859, 6293, 8091, 9813, 18879, 22897, 24273, 29439, 56637, 68691, 88317, 94859, 101401, 169911, 206073, 284577, 304203, 618219, 664013, 709807, 853731, 912609, 1992039, 2129421, 2561193, 2737827, 2940629, 5976117, 6388263, 8821887, 17928351, 19164789, 20584403, 26465661, 61753209, 79396983, 185259627, 555778881]

約数ペア:

[(1, 555778881), (3, 185259627), (7, 79396983), (9, 61753209), (21, 26465661), (27, 20584403), (29, 19164789), (31, 17928351), (63, 8821887), (87, 6388263), (93, 5976117), (189, 2940629), (203, 2737827), (217, 2561193), (261, 2129421), (279, 1992039), (609, 912609), (651, 853731), (783, 709807), (837, 664013), (899, 618219), (1827, 304203), (1953, 284577), (2697, 206073), (3271, 169911), (5481, 101401), (5859, 94859), (6293, 88317), (8091, 68691), (9813, 56637), (18879, 29439), (22897, 24273)]