21000884816

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{929}}^1\times {\mathrm{4457}}^1$

素因数の和:5711

約数の個数: 40

約数和(自身を含む): 40870676520

約数和(自身を除く): 19869791704

約数列:

[1, 2, 4, 8, 16, 317, 634, 929, 1268, 1858, 2536, 3716, 4457, 5072, 7432, 8914, 14864, 17828, 35656, 71312, 294493, 588986, 1177972, 1412869, 2355944, 2825738, 4140553, 4711888, 5651476, 8281106, 11302952, 16562212, 22605904, 33124424, 66248848, 1312555301, 2625110602, 5250221204, 10500442408, 21000884816]

約数ペア:

[(1, 21000884816), (2, 10500442408), (4, 5250221204), (8, 2625110602), (16, 1312555301), (317, 66248848), (634, 33124424), (929, 22605904), (1268, 16562212), (1858, 11302952), (2536, 8281106), (3716, 5651476), (4457, 4711888), (5072, 4140553), (7432, 2825738), (8914, 2355944), (14864, 1412869), (17828, 1177972), (35656, 588986), (71312, 294493)]