21982875

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 38417184

約数和(自身を除く): 16434309

約数列:

[1, 3, 5, 15, 25, 31, 61, 75, 93, 125, 155, 183, 305, 375, 465, 775, 915, 961, 1525, 1891, 2325, 2883, 3875, 4575, 4805, 5673, 7625, 9455, 11625, 14415, 22875, 24025, 28365, 47275, 58621, 72075, 120125, 141825, 175863, 236375, 293105, 360375, 709125, 879315, 1465525, 4396575, 7327625, 21982875]

約数ペア:

[(1, 21982875), (3, 7327625), (5, 4396575), (15, 1465525), (25, 879315), (31, 709125), (61, 360375), (75, 293105), (93, 236375), (125, 175863), (155, 141825), (183, 120125), (305, 72075), (375, 58621), (465, 47275), (775, 28365), (915, 24025), (961, 22875), (1525, 14415), (1891, 11625), (2325, 9455), (2883, 7625), (3875, 5673), (4575, 4805)]