21321656

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 41040000

約数和(自身を除く): 19718344

約数列:

[1, 2, 4, 8, 59, 118, 199, 227, 236, 398, 454, 472, 796, 908, 1592, 1816, 11741, 13393, 23482, 26786, 45173, 46964, 53572, 90346, 93928, 107144, 180692, 361384, 2665207, 5330414, 10660828, 21321656]

約数ペア:

[(1, 21321656), (2, 10660828), (4, 5330414), (8, 2665207), (59, 361384), (118, 180692), (199, 107144), (227, 93928), (236, 90346), (398, 53572), (454, 46964), (472, 45173), (796, 26786), (908, 23482), (1592, 13393), (1816, 11741)]