21607496

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{577}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 42170880

約数和(自身を除く): 20563384

約数列:

[1, 2, 4, 8, 31, 62, 124, 151, 248, 302, 577, 604, 1154, 1208, 2308, 4616, 4681, 9362, 17887, 18724, 35774, 37448, 71548, 87127, 143096, 174254, 348508, 697016, 2700937, 5401874, 10803748, 21607496]

約数ペア:

[(1, 21607496), (2, 10803748), (4, 5401874), (8, 2700937), (31, 697016), (62, 348508), (124, 174254), (151, 143096), (248, 87127), (302, 71548), (577, 37448), (604, 35774), (1154, 18724), (1208, 17887), (2308, 9362), (4616, 4681)]