1215690021

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1484359}}^1$

素因数の和:1484385

約数の個数: 24

約数和(自身を含む): 2161228160

約数和(自身を除く): 945538139

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 1484359, 4453077, 10390513, 13359231, 19296667, 31171539, 57890001, 93514617, 135076669, 173670003, 405230007, 1215690021]

約数ペア:

[(1, 1215690021), (3, 405230007), (7, 173670003), (9, 135076669), (13, 93514617), (21, 57890001), (39, 31171539), (63, 19296667), (91, 13359231), (117, 10390513), (273, 4453077), (819, 1484359)]