21131997704

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{354421}}^1$

素因数の和:354713

約数の個数: 32

約数和(自身を含む): 41148394200

約数和(自身を除く): 20016396496

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 257, 514, 1028, 2056, 7453, 14906, 29812, 59624, 354421, 708842, 1417684, 2835368, 10278209, 20556418, 41112836, 82225672, 91086197, 182172394, 364344788, 728689576, 2641499713, 5282999426, 10565998852, 21131997704]

約数ペア:

[(1, 21131997704), (2, 10565998852), (4, 5282999426), (8, 2641499713), (29, 728689576), (58, 364344788), (116, 182172394), (232, 91086197), (257, 82225672), (514, 41112836), (1028, 20556418), (2056, 10278209), (7453, 2835368), (14906, 1417684), (29812, 708842), (59624, 354421)]