21314128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{349}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 45309600

約数和(自身を除く): 23995472

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 347, 349, 694, 698, 1388, 1396, 2776, 2792, 3817, 3839, 5552, 5584, 7634, 7678, 15268, 15356, 30536, 30712, 61072, 61424, 121103, 242206, 484412, 968824, 1332133, 1937648, 2664266, 5328532, 10657064, 21314128]

約数ペア:

[(1, 21314128), (2, 10657064), (4, 5328532), (8, 2664266), (11, 1937648), (16, 1332133), (22, 968824), (44, 484412), (88, 242206), (176, 121103), (347, 61424), (349, 61072), (694, 30712), (698, 30536), (1388, 15356), (1396, 15268), (2776, 7678), (2792, 7634), (3817, 5584), (3839, 5552)]