21140376

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{13147}}^1$

素因数の和:13223

約数の個数: 32

約数和(自身を含む): 53643840

約数和(自身を除く): 32503464

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608, 13147, 26294, 39441, 52588, 78882, 105176, 157764, 315528, 880849, 1761698, 2642547, 3523396, 5285094, 7046792, 10570188, 21140376]

約数ペア:

[(1, 21140376), (2, 10570188), (3, 7046792), (4, 5285094), (6, 3523396), (8, 2642547), (12, 1761698), (24, 880849), (67, 315528), (134, 157764), (201, 105176), (268, 78882), (402, 52588), (536, 39441), (804, 26294), (1608, 13147)]