21453480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2591}}^1$

素因数の和:2631

約数の個数: 96

約数和(自身を含む): 72783360

約数和(自身を除く): 51329880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2591, 2760, 4140, 5182, 7773, 8280, 10364, 12955, 15546, 20728, 23319, 25910, 31092, 38865, 46638, 51820, 59593, 62184, 77730, 93276, 103640, 116595, 119186, 155460, 178779, 186552, 233190, 238372, 297965, 310920, 357558, 466380, 476744, 536337, 595930, 715116, 893895, 932760, 1072674, 1191860, 1430232, 1787790, 2145348, 2383720, 2681685, 3575580, 4290696, 5363370, 7151160, 10726740, 21453480]

約数ペア:

[(1, 21453480), (2, 10726740), (3, 7151160), (4, 5363370), (5, 4290696), (6, 3575580), (8, 2681685), (9, 2383720), (10, 2145348), (12, 1787790), (15, 1430232), (18, 1191860), (20, 1072674), (23, 932760), (24, 893895), (30, 715116), (36, 595930), (40, 536337), (45, 476744), (46, 466380), (60, 357558), (69, 310920), (72, 297965), (90, 238372), (92, 233190), (115, 186552), (120, 178779), (138, 155460), (180, 119186), (184, 116595), (207, 103640), (230, 93276), (276, 77730), (345, 62184), (360, 59593), (414, 51820), (460, 46638), (552, 38865), (690, 31092), (828, 25910), (920, 23319), (1035, 20728), (1380, 15546), (1656, 12955), (2070, 10364), (2591, 8280), (2760, 7773), (4140, 5182)]