21696766

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1229}}^1$

素因数の和:1348

約数の個数: 32

約数和(自身を含む): 40501440

約数和(自身を除く): 18804674

約数列:

[1, 2, 7, 13, 14, 26, 91, 97, 182, 194, 679, 1229, 1261, 1358, 2458, 2522, 8603, 8827, 15977, 17206, 17654, 31954, 111839, 119213, 223678, 238426, 834491, 1549769, 1668982, 3099538, 10848383, 21696766]

約数ペア:

[(1, 21696766), (2, 10848383), (7, 3099538), (13, 1668982), (14, 1549769), (26, 834491), (91, 238426), (97, 223678), (182, 119213), (194, 111839), (679, 31954), (1229, 17654), (1261, 17206), (1358, 15977), (2458, 8827), (2522, 8603)]