21260319

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{1237}}^1$

素因数の和:1594

約数の個数: 16

約数和(自身を含む): 30127968

約数和(自身を除く): 8867649

約数列:

[1, 3, 17, 51, 337, 1011, 1237, 3711, 5729, 17187, 21029, 63087, 416869, 1250607, 7086773, 21260319]

約数ペア:

[(1, 21260319), (3, 7086773), (17, 1250607), (51, 416869), (337, 63087), (1011, 21029), (1237, 17187), (3711, 5729)]