21689954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 38525760

約数和(自身を除く): 16835806

約数列:

[1, 2, 11, 13, 22, 26, 143, 181, 286, 362, 419, 838, 1991, 2353, 3982, 4609, 4706, 5447, 9218, 10894, 25883, 51766, 59917, 75839, 119834, 151678, 834229, 985907, 1668458, 1971814, 10844977, 21689954]

約数ペア:

[(1, 21689954), (2, 10844977), (11, 1971814), (13, 1668458), (22, 985907), (26, 834229), (143, 151678), (181, 119834), (286, 75839), (362, 59917), (419, 51766), (838, 25883), (1991, 10894), (2353, 9218), (3982, 5447), (4609, 4706)]