21026235

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13810245

約数列:

[1, 3, 5, 15, 41, 123, 179, 191, 205, 537, 573, 615, 895, 955, 2685, 2865, 7339, 7831, 22017, 23493, 34189, 36695, 39155, 102567, 110085, 117465, 170945, 512835, 1401749, 4205247, 7008745, 21026235]

約数ペア:

[(1, 21026235), (3, 7008745), (5, 4205247), (15, 1401749), (41, 512835), (123, 170945), (179, 117465), (191, 110085), (205, 102567), (537, 39155), (573, 36695), (615, 34189), (895, 23493), (955, 22017), (2685, 7831), (2865, 7339)]