21067264

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{1789}}^1$

素因数の和:1830

約数の個数: 40

約数和(自身を含む): 43948080

約数和(自身を除く): 22880816

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 1472, 1789, 2944, 3578, 5888, 7156, 11776, 14312, 28624, 41147, 57248, 82294, 114496, 164588, 228992, 329176, 457984, 658352, 915968, 1316704, 2633408, 5266816, 10533632, 21067264]

約数ペア:

[(1, 21067264), (2, 10533632), (4, 5266816), (8, 2633408), (16, 1316704), (23, 915968), (32, 658352), (46, 457984), (64, 329176), (92, 228992), (128, 164588), (184, 114496), (256, 82294), (368, 57248), (512, 41147), (736, 28624), (1472, 14312), (1789, 11776), (2944, 7156), (3578, 5888)]