21982785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{461}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 40848192

約数和(自身を除く): 18865407

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 289, 461, 561, 867, 935, 1383, 1445, 2305, 2805, 3179, 4335, 5071, 6915, 7837, 9537, 15213, 15895, 23511, 25355, 39185, 47685, 76065, 86207, 117555, 133229, 258621, 399687, 431035, 666145, 1293105, 1465519, 1998435, 4396557, 7327595, 21982785]

約数ペア:

[(1, 21982785), (3, 7327595), (5, 4396557), (11, 1998435), (15, 1465519), (17, 1293105), (33, 666145), (51, 431035), (55, 399687), (85, 258621), (165, 133229), (187, 117555), (255, 86207), (289, 76065), (461, 47685), (561, 39185), (867, 25355), (935, 23511), (1383, 15895), (1445, 15213), (2305, 9537), (2805, 7837), (3179, 6915), (4335, 5071)]