20026398

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 48153600

約数和(自身を除く): 28127202

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 49, 74, 98, 111, 147, 222, 259, 263, 294, 343, 518, 526, 686, 777, 789, 1029, 1554, 1578, 1813, 1841, 2058, 3626, 3682, 5439, 5523, 9731, 10878, 11046, 12691, 12887, 19462, 25382, 25774, 29193, 38073, 38661, 58386, 68117, 76146, 77322, 90209, 136234, 180418, 204351, 270627, 408702, 476819, 541254, 953638, 1430457, 2860914, 3337733, 6675466, 10013199, 20026398]

約数ペア:

[(1, 20026398), (2, 10013199), (3, 6675466), (6, 3337733), (7, 2860914), (14, 1430457), (21, 953638), (37, 541254), (42, 476819), (49, 408702), (74, 270627), (98, 204351), (111, 180418), (147, 136234), (222, 90209), (259, 77322), (263, 76146), (294, 68117), (343, 58386), (518, 38661), (526, 38073), (686, 29193), (777, 25774), (789, 25382), (1029, 19462), (1554, 12887), (1578, 12691), (1813, 11046), (1841, 10878), (2058, 9731), (3626, 5523), (3682, 5439)]