20199856917

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1231}}^1\times {\mathrm{1879}}^1$

素因数の和:3225

約数の個数: 32

約数和(自身を含む): 28016271360

約数和(自身を除く): 7816414443

約数列:

[1, 3, 41, 71, 123, 213, 1231, 1879, 2911, 3693, 5637, 8733, 50471, 77039, 87401, 133409, 151413, 231117, 262203, 400227, 2313049, 3583441, 5469769, 6939147, 10750323, 16409307, 94835009, 164226479, 284505027, 492679437, 6733285639, 20199856917]

約数ペア:

[(1, 20199856917), (3, 6733285639), (41, 492679437), (71, 284505027), (123, 164226479), (213, 94835009), (1231, 16409307), (1879, 10750323), (2911, 6939147), (3693, 5469769), (5637, 3583441), (8733, 2313049), (50471, 400227), (77039, 262203), (87401, 231117), (133409, 151413)]