21401793

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6661}}^1$

素因数の和:6694

約数の個数: 32

約数和(自身を含む): 38373120

約数和(自身を除く): 16971327

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 6661, 19983, 46627, 59949, 113237, 139881, 179847, 339711, 419643, 792659, 1019133, 1258929, 2377977, 3057399, 7133931, 21401793]

約数ペア:

[(1, 21401793), (3, 7133931), (7, 3057399), (9, 2377977), (17, 1258929), (21, 1019133), (27, 792659), (51, 419643), (63, 339711), (119, 179847), (153, 139881), (189, 113237), (357, 59949), (459, 46627), (1071, 19983), (3213, 6661)]