21284464

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18223}}^1$

素因数の和:18304

約数の個数: 20

約数和(自身を含む): 41805856

約数和(自身を除く): 20521392

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18223, 36446, 72892, 145784, 291568, 1330279, 2660558, 5321116, 10642232, 21284464]

約数ペア:

[(1, 21284464), (2, 10642232), (4, 5321116), (8, 2660558), (16, 1330279), (73, 291568), (146, 145784), (292, 72892), (584, 36446), (1168, 18223)]