16860879

素因数分解:

$3^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:377

約数の個数: 40

約数和(自身を含む): 29132928

約数和(自身を除く): 12272049

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 131, 189, 227, 393, 567, 681, 917, 1179, 1589, 2043, 2751, 3537, 4767, 6129, 8253, 10611, 14301, 18387, 24759, 29737, 42903, 74277, 89211, 128709, 208159, 267633, 624477, 802899, 1873431, 2408697, 5620293, 16860879]

約数ペア:

[(1, 16860879), (3, 5620293), (7, 2408697), (9, 1873431), (21, 802899), (27, 624477), (63, 267633), (81, 208159), (131, 128709), (189, 89211), (227, 74277), (393, 42903), (567, 29737), (681, 24759), (917, 18387), (1179, 14301), (1589, 10611), (2043, 8253), (2751, 6129), (3537, 4767)]