21559304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207301}}^1$

素因数の和:207320

約数の個数: 16

約数和(自身を含む): 43533420

約数和(自身を除く): 21974116

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207301, 414602, 829204, 1658408, 2694913, 5389826, 10779652, 21559304]

約数ペア:

[(1, 21559304), (2, 10779652), (4, 5389826), (8, 2694913), (13, 1658408), (26, 829204), (52, 414602), (104, 207301)]