181505961

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2383}}^1$

素因数の和:2443

約数の個数: 64

約数和(自身を含む): 341770240

約数和(自身を除く): 160264279

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 91, 93, 117, 189, 217, 273, 279, 351, 403, 651, 819, 837, 1209, 1953, 2383, 2457, 2821, 3627, 5859, 7149, 8463, 10881, 16681, 21447, 25389, 30979, 50043, 64341, 73873, 76167, 92937, 150129, 216853, 221619, 278811, 450387, 517111, 650559, 664857, 836433, 960349, 1551333, 1951677, 1994571, 2881047, 4653999, 5855031, 6722443, 8643141, 13961997, 20167329, 25929423, 60501987, 181505961]

約数ペア:

[(1, 181505961), (3, 60501987), (7, 25929423), (9, 20167329), (13, 13961997), (21, 8643141), (27, 6722443), (31, 5855031), (39, 4653999), (63, 2881047), (91, 1994571), (93, 1951677), (117, 1551333), (189, 960349), (217, 836433), (273, 664857), (279, 650559), (351, 517111), (403, 450387), (651, 278811), (819, 221619), (837, 216853), (1209, 150129), (1953, 92937), (2383, 76167), (2457, 73873), (2821, 64341), (3627, 50043), (5859, 30979), (7149, 25389), (8463, 21447), (10881, 16681)]