19472523

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 11278197

約数列:

[1, 3, 7, 21, 47, 109, 141, 181, 327, 329, 543, 763, 987, 1267, 2289, 3801, 5123, 8507, 15369, 19729, 25521, 35861, 59187, 59549, 107583, 138103, 178647, 414309, 927263, 2781789, 6490841, 19472523]

約数ペア:

[(1, 19472523), (3, 6490841), (7, 2781789), (21, 927263), (47, 414309), (109, 178647), (141, 138103), (181, 107583), (327, 59549), (329, 59187), (543, 35861), (763, 25521), (987, 19729), (1267, 15369), (2289, 8507), (3801, 5123)]