28262857

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 7852343

約数列:

[1, 7, 17, 37, 49, 119, 131, 259, 343, 629, 833, 917, 1813, 2227, 4403, 4847, 5831, 6419, 12691, 15589, 30821, 33929, 44933, 82399, 109123, 215747, 237503, 576793, 763861, 1662521, 4037551, 28262857]

約数ペア:

[(1, 28262857), (7, 4037551), (17, 1662521), (37, 763861), (49, 576793), (119, 237503), (131, 215747), (259, 109123), (343, 82399), (629, 44933), (833, 33929), (917, 30821), (1813, 15589), (2227, 12691), (4403, 6419), (4847, 5831)]