21294441

素因数分解:

$3^3\times 7^1\times {\mathrm{307}}^1\times {\mathrm{367}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 36270080

約数和(自身を除く): 14975639

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 307, 367, 921, 1101, 2149, 2569, 2763, 3303, 6447, 7707, 8289, 9909, 19341, 23121, 58023, 69363, 112669, 338007, 788683, 1014021, 2366049, 3042063, 7098147, 21294441]

約数ペア:

[(1, 21294441), (3, 7098147), (7, 3042063), (9, 2366049), (21, 1014021), (27, 788683), (63, 338007), (189, 112669), (307, 69363), (367, 58023), (921, 23121), (1101, 19341), (2149, 9909), (2569, 8289), (2763, 7707), (3303, 6447)]