1418991

素因数分解:

$3^1\times 7^4\times {\mathrm{197}}^1$

素因数の和:228

約数の個数: 20

約数和(自身を含む): 2218392

約数和(自身を除く): 799401

約数列:

[1, 3, 7, 21, 49, 147, 197, 343, 591, 1029, 1379, 2401, 4137, 7203, 9653, 28959, 67571, 202713, 472997, 1418991]

約数ペア:

[(1, 1418991), (3, 472997), (7, 202713), (21, 67571), (49, 28959), (147, 9653), (197, 7203), (343, 4137), (591, 2401), (1029, 1379)]