28642509

素因数分解:

$3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{607}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 48657024

約数和(自身を除く): 20014515

約数列:

[1, 3, 7, 9, 21, 49, 63, 107, 147, 321, 441, 607, 749, 963, 1821, 2247, 4249, 5243, 5463, 6741, 12747, 15729, 29743, 38241, 47187, 64949, 89229, 194847, 267687, 454643, 584541, 1363929, 3182501, 4091787, 9547503, 28642509]

約数ペア:

[(1, 28642509), (3, 9547503), (7, 4091787), (9, 3182501), (21, 1363929), (49, 584541), (63, 454643), (107, 267687), (147, 194847), (321, 89229), (441, 64949), (607, 47187), (749, 38241), (963, 29743), (1821, 15729), (2247, 12747), (4249, 6741), (5243, 5463)]