81709278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{6337}}^1$

素因数の和:6656

約数の個数: 32

約数和(自身を含む): 187401984

約数和(自身を除く): 105692706

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 307, 614, 921, 1842, 2149, 4298, 6337, 6447, 12674, 12894, 19011, 38022, 44359, 88718, 133077, 266154, 1945459, 3890918, 5836377, 11672754, 13618213, 27236426, 40854639, 81709278]

約数ペア:

[(1, 81709278), (2, 40854639), (3, 27236426), (6, 13618213), (7, 11672754), (14, 5836377), (21, 3890918), (42, 1945459), (307, 266154), (614, 133077), (921, 88718), (1842, 44359), (2149, 38022), (4298, 19011), (6337, 12894), (6447, 12674)]