19983523

素因数分解:

$7^5\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:105

約数の個数: 24

約数和(自身を含む): 24706080

約数和(自身を除く): 4722557

約数列:

[1, 7, 29, 41, 49, 203, 287, 343, 1189, 1421, 2009, 2401, 8323, 9947, 14063, 16807, 58261, 69629, 98441, 407827, 487403, 689087, 2854789, 19983523]

約数ペア:

[(1, 19983523), (7, 2854789), (29, 689087), (41, 487403), (49, 407827), (203, 98441), (287, 69629), (343, 58261), (1189, 16807), (1421, 14063), (2009, 9947), (2401, 8323)]