21275264

素因数分解:

$2^7\times {\mathrm{347}}^1\times {\mathrm{479}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 42595200

約数和(自身を除く): 21319936

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 347, 479, 694, 958, 1388, 1916, 2776, 3832, 5552, 7664, 11104, 15328, 22208, 30656, 44416, 61312, 166213, 332426, 664852, 1329704, 2659408, 5318816, 10637632, 21275264]

約数ペア:

[(1, 21275264), (2, 10637632), (4, 5318816), (8, 2659408), (16, 1329704), (32, 664852), (64, 332426), (128, 166213), (347, 61312), (479, 44416), (694, 30656), (958, 22208), (1388, 15328), (1916, 11104), (2776, 7664), (3832, 5552)]