21612316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11423}}^1$

素因数の和:11481

約数の個数: 24

約数和(自身を含む): 42223104

約数和(自身を除く): 20610788

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11423, 22846, 45692, 125653, 251306, 491189, 502612, 982378, 1964756, 5403079, 10806158, 21612316]

約数ペア:

[(1, 21612316), (2, 10806158), (4, 5403079), (11, 1964756), (22, 982378), (43, 502612), (44, 491189), (86, 251306), (172, 125653), (473, 45692), (946, 22846), (1892, 11423)]