19805104

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{859}}^1$

素因数の和:1009

約数の個数: 40

約数和(自身を含む): 42229440

約数和(自身を除く): 22424336

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 131, 176, 262, 524, 859, 1048, 1441, 1718, 2096, 2882, 3436, 5764, 6872, 9449, 11528, 13744, 18898, 23056, 37796, 75592, 112529, 151184, 225058, 450116, 900232, 1237819, 1800464, 2475638, 4951276, 9902552, 19805104]

約数ペア:

[(1, 19805104), (2, 9902552), (4, 4951276), (8, 2475638), (11, 1800464), (16, 1237819), (22, 900232), (44, 450116), (88, 225058), (131, 151184), (176, 112529), (262, 75592), (524, 37796), (859, 23056), (1048, 18898), (1441, 13744), (1718, 11528), (2096, 9449), (2882, 6872), (3436, 5764)]