21840393

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14767}}^1$

素因数の和:14816

約数の個数: 16

約数和(自身を含む): 31898880

約数和(自身を除く): 10058487

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14767, 44301, 251039, 428243, 753117, 1284729, 7280131, 21840393]

約数ペア:

[(1, 21840393), (3, 7280131), (17, 1284729), (29, 753117), (51, 428243), (87, 251039), (493, 44301), (1479, 14767)]