19974879939

素因数分解:

$3^1\times 7^2\times {\mathrm{1039}}^1\times {\mathrm{130783}}^1$

素因数の和:131839

約数の個数: 24

約数和(自身を含む): 31011502080

約数和(自身を除く): 11036622141

約数列:

[1, 3, 7, 21, 49, 147, 1039, 3117, 7273, 21819, 50911, 130783, 152733, 392349, 915481, 2746443, 6408367, 19225101, 135883537, 407650611, 951184759, 2853554277, 6658293313, 19974879939]

約数ペア:

[(1, 19974879939), (3, 6658293313), (7, 2853554277), (21, 951184759), (49, 407650611), (147, 135883537), (1039, 19225101), (3117, 6408367), (7273, 2746443), (21819, 915481), (50911, 392349), (130783, 152733)]