21958911

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{857}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 35555520

約数和(自身を除く): 13596609

約数列:

[1, 3, 9, 13, 27, 39, 73, 117, 219, 351, 657, 857, 949, 1971, 2571, 2847, 7713, 8541, 11141, 23139, 25623, 33423, 62561, 100269, 187683, 300807, 563049, 813293, 1689147, 2439879, 7319637, 21958911]

約数ペア:

[(1, 21958911), (3, 7319637), (9, 2439879), (13, 1689147), (27, 813293), (39, 563049), (73, 300807), (117, 187683), (219, 100269), (351, 62561), (657, 33423), (857, 25623), (949, 23139), (1971, 11141), (2571, 8541), (2847, 7713)]