20207145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{863}}^1$

素因数の和:1101

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 16951767

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 223, 669, 863, 1115, 1561, 2589, 3345, 4315, 4683, 6041, 7805, 12945, 18123, 23415, 30205, 90615, 192449, 577347, 962245, 1347143, 2886735, 4041429, 6735715, 20207145]

約数ペア:

[(1, 20207145), (3, 6735715), (5, 4041429), (7, 2886735), (15, 1347143), (21, 962245), (35, 577347), (105, 192449), (223, 90615), (669, 30205), (863, 23415), (1115, 18123), (1561, 12945), (2589, 7805), (3345, 6041), (4315, 4683)]