21156992

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2467}}^1$

素因数の和:2548

約数の個数: 32

約数和(自身を含む): 42795120

約数和(自身を除く): 21638128

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 2467, 4288, 4934, 8576, 9868, 19736, 39472, 78944, 157888, 165289, 315776, 330578, 661156, 1322312, 2644624, 5289248, 10578496, 21156992]

約数ペア:

[(1, 21156992), (2, 10578496), (4, 5289248), (8, 2644624), (16, 1322312), (32, 661156), (64, 330578), (67, 315776), (128, 165289), (134, 157888), (268, 78944), (536, 39472), (1072, 19736), (2144, 9868), (2467, 8576), (4288, 4934)]