28549989

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1427}}^1$

素因数の和:1471

約数の個数: 40

約数和(自身を含む): 48380640

約数和(自身を除く): 19830651

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1427, 1539, 2223, 4281, 6669, 12843, 18551, 20007, 27113, 38529, 55653, 81339, 115587, 166959, 244017, 352469, 500877, 732051, 1057407, 1502631, 2196153, 3172221, 9516663, 28549989]

約数ペア:

[(1, 28549989), (3, 9516663), (9, 3172221), (13, 2196153), (19, 1502631), (27, 1057407), (39, 732051), (57, 500877), (81, 352469), (117, 244017), (171, 166959), (247, 115587), (351, 81339), (513, 55653), (741, 38529), (1053, 27113), (1427, 20007), (1539, 18551), (2223, 12843), (4281, 6669)]