21612344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207811}}^1$

素因数の和:207830

約数の個数: 16

約数和(自身を含む): 43640520

約数和(自身を除く): 22028176

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207811, 415622, 831244, 1662488, 2701543, 5403086, 10806172, 21612344]

約数ペア:

[(1, 21612344), (2, 10806172), (4, 5403086), (8, 2701543), (13, 1662488), (26, 831244), (52, 415622), (104, 207811)]