21617516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 20718484

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 83, 92, 149, 166, 298, 332, 437, 596, 874, 1577, 1748, 1909, 2831, 3154, 3427, 3818, 5662, 6308, 6854, 7636, 11324, 12367, 13708, 24734, 36271, 49468, 65113, 72542, 130226, 145084, 234973, 260452, 284441, 469946, 568882, 939892, 1137764, 5404379, 10808758, 21617516]

約数ペア:

[(1, 21617516), (2, 10808758), (4, 5404379), (19, 1137764), (23, 939892), (38, 568882), (46, 469946), (76, 284441), (83, 260452), (92, 234973), (149, 145084), (166, 130226), (298, 72542), (332, 65113), (437, 49468), (596, 36271), (874, 24734), (1577, 13708), (1748, 12367), (1909, 11324), (2831, 7636), (3154, 6854), (3427, 6308), (3818, 5662)]