28072905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6521}}^1$

素因数の和:6577

約数の個数: 32

約数和(自身を含む): 52593408

約数和(自身を除く): 24520503

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 6521, 19563, 32605, 45647, 97815, 136941, 228235, 267361, 684705, 802083, 1336805, 1871527, 4010415, 5614581, 9357635, 28072905]

約数ペア:

[(1, 28072905), (3, 9357635), (5, 5614581), (7, 4010415), (15, 1871527), (21, 1336805), (35, 802083), (41, 684705), (105, 267361), (123, 228235), (205, 136941), (287, 97815), (615, 45647), (861, 32605), (1435, 19563), (4305, 6521)]