21470384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{947}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 45257520

約数和(自身を除く): 23787136

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 947, 1417, 1744, 1894, 2834, 3788, 5668, 7576, 11336, 12311, 15152, 22672, 24622, 49244, 98488, 103223, 196976, 206446, 412892, 825784, 1341899, 1651568, 2683798, 5367596, 10735192, 21470384]

約数ペア:

[(1, 21470384), (2, 10735192), (4, 5367596), (8, 2683798), (13, 1651568), (16, 1341899), (26, 825784), (52, 412892), (104, 206446), (109, 196976), (208, 103223), (218, 98488), (436, 49244), (872, 24622), (947, 22672), (1417, 15152), (1744, 12311), (1894, 11336), (2834, 7576), (3788, 5668)]