21064504

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 20407496

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 239, 478, 479, 956, 958, 1912, 1916, 3832, 5497, 10994, 11017, 21988, 22034, 43976, 44068, 88136, 114481, 228962, 457924, 915848, 2633063, 5266126, 10532252, 21064504]

約数ペア:

[(1, 21064504), (2, 10532252), (4, 5266126), (8, 2633063), (23, 915848), (46, 457924), (92, 228962), (184, 114481), (239, 88136), (478, 44068), (479, 43976), (956, 22034), (958, 21988), (1912, 11017), (1916, 10994), (3832, 5497)]