20994006

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 47473344

約数和(自身を除く): 26479338

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 93, 186, 331, 341, 662, 682, 961, 993, 1023, 1922, 1986, 2046, 2883, 3641, 5766, 7282, 10261, 10571, 10923, 20522, 21142, 21846, 30783, 31713, 61566, 63426, 112871, 225742, 318091, 338613, 636182, 677226, 954273, 1908546, 3499001, 6998002, 10497003, 20994006]

約数ペア:

[(1, 20994006), (2, 10497003), (3, 6998002), (6, 3499001), (11, 1908546), (22, 954273), (31, 677226), (33, 636182), (62, 338613), (66, 318091), (93, 225742), (186, 112871), (331, 63426), (341, 61566), (662, 31713), (682, 30783), (961, 21846), (993, 21142), (1023, 20522), (1922, 10923), (1986, 10571), (2046, 10261), (2883, 7282), (3641, 5766)]