20768868

素因数分解:

$2^2\times 3^2\times {\mathrm{359}}^1\times {\mathrm{1607}}^1$

素因数の和:1976

約数の個数: 36

約数和(自身を含む): 52678080

約数和(自身を除く): 31909212

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 359, 718, 1077, 1436, 1607, 2154, 3214, 3231, 4308, 4821, 6428, 6462, 9642, 12924, 14463, 19284, 28926, 57852, 576913, 1153826, 1730739, 2307652, 3461478, 5192217, 6922956, 10384434, 20768868]

約数ペア:

[(1, 20768868), (2, 10384434), (3, 6922956), (4, 5192217), (6, 3461478), (9, 2307652), (12, 1730739), (18, 1153826), (36, 576913), (359, 57852), (718, 28926), (1077, 19284), (1436, 14463), (1607, 12924), (2154, 9642), (3214, 6462), (3231, 6428), (4308, 4821)]