19904325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 38854656

約数和(自身を除く): 18950331

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 75, 93, 105, 155, 175, 217, 465, 525, 651, 775, 1085, 1223, 2325, 3255, 3669, 5425, 6115, 8561, 16275, 18345, 25683, 30575, 37913, 42805, 91725, 113739, 128415, 189565, 214025, 265391, 568695, 642075, 796173, 947825, 1326955, 2843475, 3980865, 6634775, 19904325]

約数ペア:

[(1, 19904325), (3, 6634775), (5, 3980865), (7, 2843475), (15, 1326955), (21, 947825), (25, 796173), (31, 642075), (35, 568695), (75, 265391), (93, 214025), (105, 189565), (155, 128415), (175, 113739), (217, 91725), (465, 42805), (525, 37913), (651, 30575), (775, 25683), (1085, 18345), (1223, 16275), (2325, 8561), (3255, 6115), (3669, 5425)]