21480688

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 43108848

約数和(自身を除く): 21628160

約数列:

[1, 2, 4, 8, 16, 53, 73, 106, 146, 212, 292, 347, 424, 584, 694, 848, 1168, 1388, 2776, 3869, 5552, 7738, 15476, 18391, 25331, 30952, 36782, 50662, 61904, 73564, 101324, 147128, 202648, 294256, 405296, 1342543, 2685086, 5370172, 10740344, 21480688]

約数ペア:

[(1, 21480688), (2, 10740344), (4, 5370172), (8, 2685086), (16, 1342543), (53, 405296), (73, 294256), (106, 202648), (146, 147128), (212, 101324), (292, 73564), (347, 61904), (424, 50662), (584, 36782), (694, 30952), (848, 25331), (1168, 18391), (1388, 15476), (2776, 7738), (3869, 5552)]