20283789

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2\times {\mathrm{83}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 28859040

約数和(自身を除く): 8575251

約数列:

[1, 3, 29, 53, 83, 87, 159, 249, 1537, 2407, 2809, 4399, 4611, 7221, 8427, 13197, 81461, 127571, 233147, 244383, 382713, 699441, 6761263, 20283789]

約数ペア:

[(1, 20283789), (3, 6761263), (29, 699441), (53, 382713), (83, 244383), (87, 233147), (159, 127571), (249, 81461), (1537, 13197), (2407, 8427), (2809, 7221), (4399, 4611)]