21522956

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8447}}^1$

素因数の和:8478

約数の個数: 36

約数和(自身を含む): 47190528

約数和(自身を除く): 25667572

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8447, 16894, 33788, 59129, 109811, 118258, 219622, 236516, 413903, 439244, 768677, 827806, 1537354, 1655612, 3074708, 5380739, 10761478, 21522956]

約数ペア:

[(1, 21522956), (2, 10761478), (4, 5380739), (7, 3074708), (13, 1655612), (14, 1537354), (26, 827806), (28, 768677), (49, 439244), (52, 413903), (91, 236516), (98, 219622), (182, 118258), (196, 109811), (364, 59129), (637, 33788), (1274, 16894), (2548, 8447)]