643775247

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 984379968

約数和(自身を除く): 340604721

約数列:

[1, 3, 9, 37, 71, 73, 111, 213, 219, 333, 373, 639, 657, 1119, 2627, 2701, 3357, 5183, 7881, 8103, 13801, 15549, 23643, 24309, 26483, 27229, 41403, 46647, 79449, 81687, 124209, 191771, 238347, 245061, 575313, 979871, 1007473, 1725939, 1933259, 2939613, 3022419, 5799777, 8818839, 9067257, 17399331, 71530583, 214591749, 643775247]

約数ペア:

[(1, 643775247), (3, 214591749), (9, 71530583), (37, 17399331), (71, 9067257), (73, 8818839), (111, 5799777), (213, 3022419), (219, 2939613), (333, 1933259), (373, 1725939), (639, 1007473), (657, 979871), (1119, 575313), (2627, 245061), (2701, 238347), (3357, 191771), (5183, 124209), (7881, 81687), (8103, 79449), (13801, 46647), (15549, 41403), (23643, 27229), (24309, 26483)]