21496041

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20071}}^1$

素因数の和:20101

約数の個数: 24

約数和(自身を含む): 37574784

約数和(自身を除く): 16078743

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20071, 60213, 140497, 180639, 341207, 421491, 1023621, 1264473, 2388449, 3070863, 7165347, 21496041]

約数ペア:

[(1, 21496041), (3, 7165347), (7, 3070863), (9, 2388449), (17, 1264473), (21, 1023621), (51, 421491), (63, 341207), (119, 180639), (153, 140497), (357, 60213), (1071, 20071)]