21184920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{709}}^1$

素因数の和:809

約数の個数: 96

約数和(自身を含む): 69778800

約数和(自身を除く): 48593880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 83, 90, 120, 166, 180, 249, 332, 360, 415, 498, 664, 709, 747, 830, 996, 1245, 1418, 1494, 1660, 1992, 2127, 2490, 2836, 2988, 3320, 3545, 3735, 4254, 4980, 5672, 5976, 6381, 7090, 7470, 8508, 9960, 10635, 12762, 14180, 14940, 17016, 21270, 25524, 28360, 29880, 31905, 42540, 51048, 58847, 63810, 85080, 117694, 127620, 176541, 235388, 255240, 294235, 353082, 470776, 529623, 588470, 706164, 882705, 1059246, 1176940, 1412328, 1765410, 2118492, 2353880, 2648115, 3530820, 4236984, 5296230, 7061640, 10592460, 21184920]

約数ペア:

[(1, 21184920), (2, 10592460), (3, 7061640), (4, 5296230), (5, 4236984), (6, 3530820), (8, 2648115), (9, 2353880), (10, 2118492), (12, 1765410), (15, 1412328), (18, 1176940), (20, 1059246), (24, 882705), (30, 706164), (36, 588470), (40, 529623), (45, 470776), (60, 353082), (72, 294235), (83, 255240), (90, 235388), (120, 176541), (166, 127620), (180, 117694), (249, 85080), (332, 63810), (360, 58847), (415, 51048), (498, 42540), (664, 31905), (709, 29880), (747, 28360), (830, 25524), (996, 21270), (1245, 17016), (1418, 14940), (1494, 14180), (1660, 12762), (1992, 10635), (2127, 9960), (2490, 8508), (2836, 7470), (2988, 7090), (3320, 6381), (3545, 5976), (3735, 5672), (4254, 4980)]