21663208

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2953}}^1$

素因数の和:3097

約数の個数: 32

約数和(自身を含む): 46791360

約数和(自身を除く): 25128152

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2953, 3668, 5906, 7336, 11812, 20671, 23624, 41342, 82684, 165368, 386843, 773686, 1547372, 2707901, 3094744, 5415802, 10831604, 21663208]

約数ペア:

[(1, 21663208), (2, 10831604), (4, 5415802), (7, 3094744), (8, 2707901), (14, 1547372), (28, 773686), (56, 386843), (131, 165368), (262, 82684), (524, 41342), (917, 23624), (1048, 20671), (1834, 11812), (2953, 7336), (3668, 5906)]