21931920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:469

約数の個数: 120

約数和(自身を含む): 74745216

約数和(自身を除く): 52813296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 83, 90, 120, 144, 166, 180, 240, 249, 332, 360, 367, 415, 498, 664, 720, 734, 747, 830, 996, 1101, 1245, 1328, 1468, 1494, 1660, 1835, 1992, 2202, 2490, 2936, 2988, 3303, 3320, 3670, 3735, 3984, 4404, 4980, 5505, 5872, 5976, 6606, 6640, 7340, 7470, 8808, 9960, 11010, 11952, 13212, 14680, 14940, 16515, 17616, 19920, 22020, 26424, 29360, 29880, 30461, 33030, 44040, 52848, 59760, 60922, 66060, 88080, 91383, 121844, 132120, 152305, 182766, 243688, 264240, 274149, 304610, 365532, 456915, 487376, 548298, 609220, 731064, 913830, 1096596, 1218440, 1370745, 1462128, 1827660, 2193192, 2436880, 2741490, 3655320, 4386384, 5482980, 7310640, 10965960, 21931920]

約数ペア:

[(1, 21931920), (2, 10965960), (3, 7310640), (4, 5482980), (5, 4386384), (6, 3655320), (8, 2741490), (9, 2436880), (10, 2193192), (12, 1827660), (15, 1462128), (16, 1370745), (18, 1218440), (20, 1096596), (24, 913830), (30, 731064), (36, 609220), (40, 548298), (45, 487376), (48, 456915), (60, 365532), (72, 304610), (80, 274149), (83, 264240), (90, 243688), (120, 182766), (144, 152305), (166, 132120), (180, 121844), (240, 91383), (249, 88080), (332, 66060), (360, 60922), (367, 59760), (415, 52848), (498, 44040), (664, 33030), (720, 30461), (734, 29880), (747, 29360), (830, 26424), (996, 22020), (1101, 19920), (1245, 17616), (1328, 16515), (1468, 14940), (1494, 14680), (1660, 13212), (1835, 11952), (1992, 11010), (2202, 9960), (2490, 8808), (2936, 7470), (2988, 7340), (3303, 6640), (3320, 6606), (3670, 5976), (3735, 5872), (3984, 5505), (4404, 4980)]