21033776

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{937}}^1$

素因数の和:1029

約数の個数: 40

約数和(自身を含む): 43268064

約数和(自身を除く): 22234288

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 937, 976, 1403, 1874, 2806, 3748, 5612, 7496, 11224, 14992, 21551, 22448, 43102, 57157, 86204, 114314, 172408, 228628, 344816, 457256, 914512, 1314611, 2629222, 5258444, 10516888, 21033776]

約数ペア:

[(1, 21033776), (2, 10516888), (4, 5258444), (8, 2629222), (16, 1314611), (23, 914512), (46, 457256), (61, 344816), (92, 228628), (122, 172408), (184, 114314), (244, 86204), (368, 57157), (488, 43102), (937, 22448), (976, 21551), (1403, 14992), (1874, 11224), (2806, 7496), (3748, 5612)]