19528821

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2011}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 30759456

約数和(自身を除く): 11230635

約数列:

[1, 3, 9, 13, 39, 83, 117, 249, 747, 1079, 2011, 3237, 6033, 9711, 18099, 26143, 78429, 166913, 235287, 500739, 1502217, 2169869, 6509607, 19528821]

約数ペア:

[(1, 19528821), (3, 6509607), (9, 2169869), (13, 1502217), (39, 500739), (83, 235287), (117, 166913), (249, 78429), (747, 26143), (1079, 18099), (2011, 9711), (3237, 6033)]