21328542

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{5563}}^1$

素因数の和:5645

約数の個数: 32

約数和(自身を含む): 48072960

約数和(自身を除く): 26744418

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 5563, 11126, 16689, 33378, 50067, 100134, 150201, 300402, 394973, 789946, 1184919, 2369838, 3554757, 7109514, 10664271, 21328542]

約数ペア:

[(1, 21328542), (2, 10664271), (3, 7109514), (6, 3554757), (9, 2369838), (18, 1184919), (27, 789946), (54, 394973), (71, 300402), (142, 150201), (213, 100134), (426, 50067), (639, 33378), (1278, 16689), (1917, 11126), (3834, 5563)]