21151604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4261}}^1$

素因数の和:4355

約数の個数: 24

約数和(自身を含む): 39738888

約数和(自身を除く): 18587284

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4261, 4964, 8522, 17044, 72437, 144874, 289748, 311053, 622106, 1244212, 5287901, 10575802, 21151604]

約数ペア:

[(1, 21151604), (2, 10575802), (4, 5287901), (17, 1244212), (34, 622106), (68, 311053), (73, 289748), (146, 144874), (292, 72437), (1241, 17044), (2482, 8522), (4261, 4964)]