18821943

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1879}}^1$

素因数の和:1948

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 13664457

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 1879, 3339, 5637, 10017, 13153, 16911, 39459, 50733, 99587, 118377, 298761, 355131, 697109, 896283, 2091327, 2688849, 6273981, 18821943]

約数ペア:

[(1, 18821943), (3, 6273981), (7, 2688849), (9, 2091327), (21, 896283), (27, 697109), (53, 355131), (63, 298761), (159, 118377), (189, 99587), (371, 50733), (477, 39459), (1113, 16911), (1431, 13153), (1879, 10017), (3339, 5637)]