18345496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 37220400

約数和(自身を除く): 18874904

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 419, 421, 838, 842, 1676, 1684, 3352, 3368, 5447, 5473, 10894, 10946, 21788, 21892, 43576, 43784, 176399, 352798, 705596, 1411192, 2293187, 4586374, 9172748, 18345496]

約数ペア:

[(1, 18345496), (2, 9172748), (4, 4586374), (8, 2293187), (13, 1411192), (26, 705596), (52, 352798), (104, 176399), (419, 43784), (421, 43576), (838, 21892), (842, 21788), (1676, 10946), (1684, 10894), (3352, 5473), (3368, 5447)]