21857988

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{983}}^1$

素因数の和:1116

約数の個数: 48

約数和(自身を含む): 54552960

約数和(自身を除く): 32694972

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 109, 204, 218, 327, 436, 654, 983, 1308, 1853, 1966, 2949, 3706, 3932, 5559, 5898, 7412, 11118, 11796, 16711, 22236, 33422, 50133, 66844, 100266, 107147, 200532, 214294, 321441, 428588, 642882, 1285764, 1821499, 3642998, 5464497, 7285996, 10928994, 21857988]

約数ペア:

[(1, 21857988), (2, 10928994), (3, 7285996), (4, 5464497), (6, 3642998), (12, 1821499), (17, 1285764), (34, 642882), (51, 428588), (68, 321441), (102, 214294), (109, 200532), (204, 107147), (218, 100266), (327, 66844), (436, 50133), (654, 33422), (983, 22236), (1308, 16711), (1853, 11796), (1966, 11118), (2949, 7412), (3706, 5898), (3932, 5559)]