207978188

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{431}}^1\times {\mathrm{997}}^1$

素因数の和:1454

約数の個数: 36

約数和(自身を含む): 401387616

約数和(自身を除く): 193409428

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 431, 484, 862, 997, 1724, 1994, 3988, 4741, 9482, 10967, 18964, 21934, 43868, 52151, 104302, 120637, 208604, 241274, 429707, 482548, 859414, 1718828, 4726777, 9453554, 18907108, 51994547, 103989094, 207978188]

約数ペア:

[(1, 207978188), (2, 103989094), (4, 51994547), (11, 18907108), (22, 9453554), (44, 4726777), (121, 1718828), (242, 859414), (431, 482548), (484, 429707), (862, 241274), (997, 208604), (1724, 120637), (1994, 104302), (3988, 52151), (4741, 43868), (9482, 21934), (10967, 18964)]