28887639

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 15107241

約数列:

[1, 3, 11, 33, 37, 59, 111, 177, 401, 407, 649, 1203, 1221, 1947, 2183, 4411, 6549, 13233, 14837, 23659, 24013, 44511, 70977, 72039, 163207, 260249, 489621, 780747, 875383, 2626149, 9629213, 28887639]

約数ペア:

[(1, 28887639), (3, 9629213), (11, 2626149), (33, 875383), (37, 780747), (59, 489621), (111, 260249), (177, 163207), (401, 72039), (407, 70977), (649, 44511), (1203, 24013), (1221, 23659), (1947, 14837), (2183, 13233), (4411, 6549)]