2578821

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 4087584

約数和(自身を除く): 1508763

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 331, 371, 993, 1113, 2317, 2597, 6951, 7791, 16219, 17543, 48657, 52629, 122801, 368403, 859607, 2578821]

約数ペア:

[(1, 2578821), (3, 859607), (7, 368403), (21, 122801), (49, 52629), (53, 48657), (147, 17543), (159, 16219), (331, 7791), (371, 6951), (993, 2597), (1113, 2317)]