21086568

素因数分解:

$2^3\times 3^5\times {\mathrm{10847}}^1$

素因数の和:10868

約数の個数: 48

約数和(自身を含む): 59230080

約数和(自身を除く): 38143512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10847, 21694, 32541, 43388, 65082, 86776, 97623, 130164, 195246, 260328, 292869, 390492, 585738, 780984, 878607, 1171476, 1757214, 2342952, 2635821, 3514428, 5271642, 7028856, 10543284, 21086568]

約数ペア:

[(1, 21086568), (2, 10543284), (3, 7028856), (4, 5271642), (6, 3514428), (8, 2635821), (9, 2342952), (12, 1757214), (18, 1171476), (24, 878607), (27, 780984), (36, 585738), (54, 390492), (72, 292869), (81, 260328), (108, 195246), (162, 130164), (216, 97623), (243, 86776), (324, 65082), (486, 43388), (648, 32541), (972, 21694), (1944, 10847)]