21786399

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 32432400

約数和(自身を除く): 10646001

約数列:

[1, 3, 9, 59, 89, 177, 267, 461, 531, 801, 1383, 4149, 5251, 15753, 27199, 41029, 47259, 81597, 123087, 244791, 369261, 2420711, 7262133, 21786399]

約数ペア:

[(1, 21786399), (3, 7262133), (9, 2420711), (59, 369261), (89, 244791), (177, 123087), (267, 81597), (461, 47259), (531, 41029), (801, 27199), (1383, 15753), (4149, 5251)]