21277854

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{90931}}^1$

素因数の和:90952

約数の個数: 24

約数和(自身を含む): 49648872

約数和(自身を除く): 28371018

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 90931, 181862, 272793, 545586, 818379, 1182103, 1636758, 2364206, 3546309, 7092618, 10638927, 21277854]

約数ペア:

[(1, 21277854), (2, 10638927), (3, 7092618), (6, 3546309), (9, 2364206), (13, 1636758), (18, 1182103), (26, 818379), (39, 545586), (78, 272793), (117, 181862), (234, 90931)]