21306688

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25609}}^1$

素因数の和:25634

約数の個数: 28

約数和(自身を含む): 45534580

約数和(自身を除く): 24227892

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25609, 51218, 102436, 204872, 332917, 409744, 665834, 819488, 1331668, 1638976, 2663336, 5326672, 10653344, 21306688]

約数ペア:

[(1, 21306688), (2, 10653344), (4, 5326672), (8, 2663336), (13, 1638976), (16, 1331668), (26, 819488), (32, 665834), (52, 409744), (64, 332917), (104, 204872), (208, 102436), (416, 51218), (832, 25609)]