21840282

素因数分解:

$2^1\times 3^2\times {\mathrm{997}}^1\times {\mathrm{1217}}^1$

素因数の和:2222

約数の個数: 24

約数和(自身を含む): 47406996

約数和(自身を除く): 25566714

約数列:

[1, 2, 3, 6, 9, 18, 997, 1217, 1994, 2434, 2991, 3651, 5982, 7302, 8973, 10953, 17946, 21906, 1213349, 2426698, 3640047, 7280094, 10920141, 21840282]

約数ペア:

[(1, 21840282), (2, 10920141), (3, 7280094), (6, 3640047), (9, 2426698), (18, 1213349), (997, 21906), (1217, 17946), (1994, 10953), (2434, 8973), (2991, 7302), (3651, 5982)]