21623824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{857}}^1$

素因数の和:967

約数の個数: 40

約数和(自身を含む): 44684640

約数和(自身を除く): 23060816

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 857, 1328, 1577, 1714, 3154, 3428, 6308, 6856, 12616, 13712, 16283, 25232, 32566, 65132, 71131, 130264, 142262, 260528, 284524, 569048, 1138096, 1351489, 2702978, 5405956, 10811912, 21623824]

約数ペア:

[(1, 21623824), (2, 10811912), (4, 5405956), (8, 2702978), (16, 1351489), (19, 1138096), (38, 569048), (76, 284524), (83, 260528), (152, 142262), (166, 130264), (304, 71131), (332, 65132), (664, 32566), (857, 25232), (1328, 16283), (1577, 13712), (1714, 12616), (3154, 6856), (3428, 6308)]