21286870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6673}}^1$

素因数の和:6720

約数の個数: 32

約数和(自身を含む): 43247520

約数和(自身を除く): 21960650

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6673, 13346, 33365, 66730, 73403, 146806, 193517, 367015, 387034, 734030, 967585, 1935170, 2128687, 4257374, 10643435, 21286870]

約数ペア:

[(1, 21286870), (2, 10643435), (5, 4257374), (10, 2128687), (11, 1935170), (22, 967585), (29, 734030), (55, 387034), (58, 367015), (110, 193517), (145, 146806), (290, 73403), (319, 66730), (638, 33365), (1595, 13346), (3190, 6673)]