21271354

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 14371526

約数列:

[1, 2, 13, 26, 47, 94, 103, 169, 206, 338, 611, 1222, 1339, 2197, 2678, 4394, 4841, 7943, 9682, 15886, 17407, 34814, 62933, 103259, 125866, 206518, 226291, 452582, 818129, 1636258, 10635677, 21271354]

約数ペア:

[(1, 21271354), (2, 10635677), (13, 1636258), (26, 818129), (47, 452582), (94, 226291), (103, 206518), (169, 125866), (206, 103259), (338, 62933), (611, 34814), (1222, 17407), (1339, 15886), (2197, 9682), (2678, 7943), (4394, 4841)]