2211321

素因数分解:

$3^1\times 7^4\times {\mathrm{307}}^1$

素因数の和:338

約数の個数: 20

約数和(自身を含む): 3450832

約数和(自身を除く): 1239511

約数列:

[1, 3, 7, 21, 49, 147, 307, 343, 921, 1029, 2149, 2401, 6447, 7203, 15043, 45129, 105301, 315903, 737107, 2211321]

約数ペア:

[(1, 2211321), (3, 737107), (7, 315903), (21, 105301), (49, 45129), (147, 15043), (307, 7203), (343, 6447), (921, 2401), (1029, 2149)]