81177747

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6563}}^1$

素因数の和:6623

約数の個数: 32

約数和(自身を含む): 134430720

約数和(自身を除く): 53252973

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1767, 4123, 6563, 12369, 19689, 45941, 124697, 137823, 203453, 374091, 610359, 872879, 1424171, 2618637, 3865607, 4272513, 11596821, 27059249, 81177747]

約数ペア:

[(1, 81177747), (3, 27059249), (7, 11596821), (19, 4272513), (21, 3865607), (31, 2618637), (57, 1424171), (93, 872879), (133, 610359), (217, 374091), (399, 203453), (589, 137823), (651, 124697), (1767, 45941), (4123, 19689), (6563, 12369)]