21983478

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{839}}^1$

素因数の和:1252

約数の個数: 32

約数和(自身を含む): 48142080

約数和(自身を除く): 26158602

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 397, 794, 839, 1191, 1678, 2382, 2517, 4367, 5034, 8734, 9229, 13101, 18458, 26202, 27687, 55374, 333083, 666166, 999249, 1998498, 3663913, 7327826, 10991739, 21983478]

約数ペア:

[(1, 21983478), (2, 10991739), (3, 7327826), (6, 3663913), (11, 1998498), (22, 999249), (33, 666166), (66, 333083), (397, 55374), (794, 27687), (839, 26202), (1191, 18458), (1678, 13101), (2382, 9229), (2517, 8734), (4367, 5034)]