21381569495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{729373}}^1$

素因数の和:729443

約数の個数: 32

約数和(自身を含む): 30878777664

約数和(自身を除く): 9497208169

約数列:

[1, 5, 11, 13, 41, 55, 65, 143, 205, 451, 533, 715, 2255, 2665, 5863, 29315, 729373, 3646865, 8023103, 9481849, 29904293, 40115515, 47409245, 104300339, 149521465, 328947223, 388755809, 521501695, 1644736115, 1943779045, 4276313899, 21381569495]

約数ペア:

[(1, 21381569495), (5, 4276313899), (11, 1943779045), (13, 1644736115), (41, 521501695), (55, 388755809), (65, 328947223), (143, 149521465), (205, 104300339), (451, 47409245), (533, 40115515), (715, 29904293), (2255, 9481849), (2665, 8023103), (5863, 3646865), (29315, 729373)]