19121487

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 34283520

約数和(自身を除く): 15162033

約数列:

[1, 3, 7, 11, 21, 23, 33, 59, 61, 69, 77, 161, 177, 183, 231, 253, 413, 427, 483, 649, 671, 759, 1239, 1281, 1357, 1403, 1771, 1947, 2013, 3599, 4071, 4209, 4543, 4697, 5313, 9499, 9821, 10797, 13629, 14091, 14927, 15433, 25193, 28497, 29463, 39589, 44781, 46299, 75579, 82777, 104489, 108031, 118767, 248331, 277123, 313467, 324093, 579439, 831369, 910547, 1738317, 2731641, 6373829, 19121487]

約数ペア:

[(1, 19121487), (3, 6373829), (7, 2731641), (11, 1738317), (21, 910547), (23, 831369), (33, 579439), (59, 324093), (61, 313467), (69, 277123), (77, 248331), (161, 118767), (177, 108031), (183, 104489), (231, 82777), (253, 75579), (413, 46299), (427, 44781), (483, 39589), (649, 29463), (671, 28497), (759, 25193), (1239, 15433), (1281, 14927), (1357, 14091), (1403, 13629), (1771, 10797), (1947, 9821), (2013, 9499), (3599, 5313), (4071, 4697), (4209, 4543)]