21111116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2243}}^1$

素因数の和:2441

約数の個数: 24

約数和(自身を含む): 40023984

約数和(自身を除く): 18912868

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2243, 2353, 4486, 4706, 8972, 9412, 29159, 58318, 116636, 405983, 811966, 1623932, 5277779, 10555558, 21111116]

約数ペア:

[(1, 21111116), (2, 10555558), (4, 5277779), (13, 1623932), (26, 811966), (52, 405983), (181, 116636), (362, 58318), (724, 29159), (2243, 9412), (2353, 8972), (4486, 4706)]