28457611

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 37452800

約数和(自身を除く): 8995189

約数列:

[1, 7, 13, 19, 91, 109, 133, 151, 247, 763, 1057, 1417, 1729, 1963, 2071, 2869, 9919, 13741, 14497, 16459, 20083, 26923, 37297, 115213, 188461, 213967, 261079, 312721, 1497769, 2189047, 4065373, 28457611]

約数ペア:

[(1, 28457611), (7, 4065373), (13, 2189047), (19, 1497769), (91, 312721), (109, 261079), (133, 213967), (151, 188461), (247, 115213), (763, 37297), (1057, 26923), (1417, 20083), (1729, 16459), (1963, 14497), (2071, 13741), (2869, 9919)]