21050460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1409}}^1$

素因数の和:1507

約数の個数: 72

約数和(自身を含む): 64668240

約数和(自身を除く): 43617780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1409, 1494, 1660, 2490, 2818, 2988, 3735, 4227, 4980, 5636, 7045, 7470, 8454, 12681, 14090, 14940, 16908, 21135, 25362, 28180, 42270, 50724, 63405, 84540, 116947, 126810, 233894, 253620, 350841, 467788, 584735, 701682, 1052523, 1169470, 1403364, 1754205, 2105046, 2338940, 3508410, 4210092, 5262615, 7016820, 10525230, 21050460]

約数ペア:

[(1, 21050460), (2, 10525230), (3, 7016820), (4, 5262615), (5, 4210092), (6, 3508410), (9, 2338940), (10, 2105046), (12, 1754205), (15, 1403364), (18, 1169470), (20, 1052523), (30, 701682), (36, 584735), (45, 467788), (60, 350841), (83, 253620), (90, 233894), (166, 126810), (180, 116947), (249, 84540), (332, 63405), (415, 50724), (498, 42270), (747, 28180), (830, 25362), (996, 21135), (1245, 16908), (1409, 14940), (1494, 14090), (1660, 12681), (2490, 8454), (2818, 7470), (2988, 7045), (3735, 5636), (4227, 4980)]