21246303

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 31804416

約数和(自身を除く): 10558113

約数列:

[1, 3, 13, 39, 47, 67, 141, 173, 201, 519, 611, 871, 1833, 2249, 2613, 3149, 6747, 8131, 9447, 11591, 24393, 34773, 40937, 105703, 122811, 150683, 317109, 452049, 544777, 1634331, 7082101, 21246303]

約数ペア:

[(1, 21246303), (3, 7082101), (13, 1634331), (39, 544777), (47, 452049), (67, 317109), (141, 150683), (173, 122811), (201, 105703), (519, 40937), (611, 34773), (871, 24393), (1833, 11591), (2249, 9447), (2613, 8131), (3149, 6747)]