31505097

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 52496640

約数和(自身を除く): 20991543

約数列:

[1, 3, 13, 17, 19, 39, 41, 51, 57, 61, 123, 183, 221, 247, 323, 533, 663, 697, 741, 779, 793, 969, 1037, 1159, 1599, 2091, 2337, 2379, 2501, 3111, 3477, 4199, 7503, 9061, 10127, 12597, 13243, 13481, 15067, 19703, 27183, 30381, 32513, 39729, 40443, 42517, 45201, 47519, 59109, 97539, 127551, 142557, 172159, 256139, 516477, 552721, 617747, 768417, 807823, 1658163, 1853241, 2423469, 10501699, 31505097]

約数ペア:

[(1, 31505097), (3, 10501699), (13, 2423469), (17, 1853241), (19, 1658163), (39, 807823), (41, 768417), (51, 617747), (57, 552721), (61, 516477), (123, 256139), (183, 172159), (221, 142557), (247, 127551), (323, 97539), (533, 59109), (663, 47519), (697, 45201), (741, 42517), (779, 40443), (793, 39729), (969, 32513), (1037, 30381), (1159, 27183), (1599, 19703), (2091, 15067), (2337, 13481), (2379, 13243), (2501, 12597), (3111, 10127), (3477, 9061), (4199, 7503)]