21652316

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1811}}^1$

素因数の和:1890

約数の個数: 36

約数和(自身を含む): 44825256

約数和(自身を除く): 23172940

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1708, 1811, 2989, 3622, 5978, 7244, 11956, 12677, 25354, 50708, 88739, 110471, 177478, 220942, 354956, 441884, 773297, 1546594, 3093188, 5413079, 10826158, 21652316]

約数ペア:

[(1, 21652316), (2, 10826158), (4, 5413079), (7, 3093188), (14, 1546594), (28, 773297), (49, 441884), (61, 354956), (98, 220942), (122, 177478), (196, 110471), (244, 88739), (427, 50708), (854, 25354), (1708, 12677), (1811, 11956), (2989, 7244), (3622, 5978)]