21379566

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4091}}^1$

素因数の和:4176

約数の個数: 32

約数和(自身を含む): 46747008

約数和(自身を除く): 25367442

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 201, 402, 871, 1742, 2613, 4091, 5226, 8182, 12273, 24546, 53183, 106366, 159549, 274097, 319098, 548194, 822291, 1644582, 3563261, 7126522, 10689783, 21379566]

約数ペア:

[(1, 21379566), (2, 10689783), (3, 7126522), (6, 3563261), (13, 1644582), (26, 822291), (39, 548194), (67, 319098), (78, 274097), (134, 159549), (201, 106366), (402, 53183), (871, 24546), (1742, 12273), (2613, 8182), (4091, 5226)]