25508241

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 43130880

約数和(自身を除く): 17622639

約数列:

[1, 3, 9, 11, 19, 33, 57, 71, 99, 171, 191, 209, 213, 573, 627, 639, 781, 1349, 1719, 1881, 2101, 2343, 3629, 4047, 6303, 7029, 10887, 12141, 13561, 14839, 18909, 32661, 39919, 40683, 44517, 119757, 122049, 133551, 149171, 257659, 359271, 447513, 772977, 1342539, 2318931, 2834249, 8502747, 25508241]

約数ペア:

[(1, 25508241), (3, 8502747), (9, 2834249), (11, 2318931), (19, 1342539), (33, 772977), (57, 447513), (71, 359271), (99, 257659), (171, 149171), (191, 133551), (209, 122049), (213, 119757), (573, 44517), (627, 40683), (639, 39919), (781, 32661), (1349, 18909), (1719, 14839), (1881, 13561), (2101, 12141), (2343, 10887), (3629, 7029), (4047, 6303)]