71729919

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{1237}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 110082960

約数和(自身を除く): 38353041

約数列:

[1, 3, 9, 17, 51, 153, 379, 1137, 1237, 3411, 3711, 6443, 11133, 19329, 21029, 57987, 63087, 189261, 468823, 1406469, 4219407, 7969991, 23909973, 71729919]

約数ペア:

[(1, 71729919), (3, 23909973), (9, 7969991), (17, 4219407), (51, 1406469), (153, 468823), (379, 189261), (1137, 63087), (1237, 57987), (3411, 21029), (3711, 19329), (6443, 11133)]