21639654

素因数分解:

$2^1\times 3^2\times {\mathrm{101}}^1\times {\mathrm{11903}}^1$

素因数の和:12012

約数の個数: 24

約数和(自身を含む): 47354112

約数和(自身を除く): 25714458

約数列:

[1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818, 11903, 23806, 35709, 71418, 107127, 214254, 1202203, 2404406, 3606609, 7213218, 10819827, 21639654]

約数ペア:

[(1, 21639654), (2, 10819827), (3, 7213218), (6, 3606609), (9, 2404406), (18, 1202203), (101, 214254), (202, 107127), (303, 71418), (606, 35709), (909, 23806), (1818, 11903)]