21385087685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{599}}^1\times {\mathrm{5039}}^1$

素因数の和:5765

約数の個数: 32

約数和(自身を含む): 27941760000

約数和(自身を除く): 6556672315

約数列:

[1, 5, 13, 65, 109, 545, 599, 1417, 2995, 5039, 7085, 7787, 25195, 38935, 65291, 65507, 326455, 327535, 549251, 848783, 2746255, 3018361, 4243915, 7140263, 15091805, 35701315, 39238693, 196193465, 329001349, 1645006745, 4277017537, 21385087685]

約数ペア:

[(1, 21385087685), (5, 4277017537), (13, 1645006745), (65, 329001349), (109, 196193465), (545, 39238693), (599, 35701315), (1417, 15091805), (2995, 7140263), (5039, 4243915), (7085, 3018361), (7787, 2746255), (25195, 848783), (38935, 549251), (65291, 327535), (65507, 326455)]