21042232

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 40590000

約数和(自身を除く): 19547768

約数列:

[1, 2, 4, 8, 59, 109, 118, 218, 236, 409, 436, 472, 818, 872, 1636, 3272, 6431, 12862, 24131, 25724, 44581, 48262, 51448, 89162, 96524, 178324, 193048, 356648, 2630279, 5260558, 10521116, 21042232]

約数ペア:

[(1, 21042232), (2, 10521116), (4, 5260558), (8, 2630279), (59, 356648), (109, 193048), (118, 178324), (218, 96524), (236, 89162), (409, 51448), (436, 48262), (472, 44581), (818, 25724), (872, 24131), (1636, 12862), (3272, 6431)]