21972368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{953}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 46845216

約数和(自身を除く): 24872848

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 131, 176, 262, 524, 953, 1048, 1441, 1906, 2096, 2882, 3812, 5764, 7624, 10483, 11528, 15248, 20966, 23056, 41932, 83864, 124843, 167728, 249686, 499372, 998744, 1373273, 1997488, 2746546, 5493092, 10986184, 21972368]

約数ペア:

[(1, 21972368), (2, 10986184), (4, 5493092), (8, 2746546), (11, 1997488), (16, 1373273), (22, 998744), (44, 499372), (88, 249686), (131, 167728), (176, 124843), (262, 83864), (524, 41932), (953, 23056), (1048, 20966), (1441, 15248), (1906, 11528), (2096, 10483), (2882, 7624), (3812, 5764)]