21342648

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8311}}^1$

素因数の和:8427

約数の個数: 32

約数和(自身を含む): 53861760

約数和(自身を除く): 32519112

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8311, 16622, 24933, 33244, 49866, 66488, 99732, 199464, 889277, 1778554, 2667831, 3557108, 5335662, 7114216, 10671324, 21342648]

約数ペア:

[(1, 21342648), (2, 10671324), (3, 7114216), (4, 5335662), (6, 3557108), (8, 2667831), (12, 1778554), (24, 889277), (107, 199464), (214, 99732), (321, 66488), (428, 49866), (642, 33244), (856, 24933), (1284, 16622), (2568, 8311)]