21554858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:662

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15216982

約数列:

[1, 2, 13, 26, 31, 47, 62, 94, 403, 569, 611, 806, 1138, 1222, 1457, 2914, 7397, 14794, 17639, 18941, 26743, 35278, 37882, 53486, 229307, 347659, 458614, 695318, 829033, 1658066, 10777429, 21554858]

約数ペア:

[(1, 21554858), (2, 10777429), (13, 1658066), (26, 829033), (31, 695318), (47, 458614), (62, 347659), (94, 229307), (403, 53486), (569, 37882), (611, 35278), (806, 26743), (1138, 18941), (1222, 17639), (1457, 14794), (2914, 7397)]