21164584

素因数分解:

$2^3\times 7^1\times {\mathrm{457}}^1\times {\mathrm{827}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 45506880

約数和(自身を除く): 24342296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 457, 827, 914, 1654, 1828, 3199, 3308, 3656, 5789, 6398, 6616, 11578, 12796, 23156, 25592, 46312, 377939, 755878, 1511756, 2645573, 3023512, 5291146, 10582292, 21164584]

約数ペア:

[(1, 21164584), (2, 10582292), (4, 5291146), (7, 3023512), (8, 2645573), (14, 1511756), (28, 755878), (56, 377939), (457, 46312), (827, 25592), (914, 23156), (1654, 12796), (1828, 11578), (3199, 6616), (3308, 6398), (3656, 5789)]