21422556

素因数分解:

$2^2\times 3^4\times {\mathrm{37}}^1\times {\mathrm{1787}}^1$

素因数の和:1840

約数の個数: 60

約数和(自身を含む): 57548568

約数和(自身を除く): 36126012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 222, 324, 333, 444, 666, 999, 1332, 1787, 1998, 2997, 3574, 3996, 5361, 5994, 7148, 10722, 11988, 16083, 21444, 32166, 48249, 64332, 66119, 96498, 132238, 144747, 192996, 198357, 264476, 289494, 396714, 578988, 595071, 793428, 1190142, 1785213, 2380284, 3570426, 5355639, 7140852, 10711278, 21422556]

約数ペア:

[(1, 21422556), (2, 10711278), (3, 7140852), (4, 5355639), (6, 3570426), (9, 2380284), (12, 1785213), (18, 1190142), (27, 793428), (36, 595071), (37, 578988), (54, 396714), (74, 289494), (81, 264476), (108, 198357), (111, 192996), (148, 144747), (162, 132238), (222, 96498), (324, 66119), (333, 64332), (444, 48249), (666, 32166), (999, 21444), (1332, 16083), (1787, 11988), (1998, 10722), (2997, 7148), (3574, 5994), (3996, 5361)]