21147272

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 40527000

約数和(自身を除く): 19379728

約数列:

[1, 2, 4, 8, 113, 149, 157, 226, 298, 314, 452, 596, 628, 904, 1192, 1256, 16837, 17741, 23393, 33674, 35482, 46786, 67348, 70964, 93572, 134696, 141928, 187144, 2643409, 5286818, 10573636, 21147272]

約数ペア:

[(1, 21147272), (2, 10573636), (4, 5286818), (8, 2643409), (113, 187144), (149, 141928), (157, 134696), (226, 93572), (298, 70964), (314, 67348), (452, 46786), (596, 35482), (628, 33674), (904, 23393), (1192, 17741), (1256, 16837)]