21055256

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{19211}}^1$

素因数の和:19354

約数の個数: 16

約数和(自身を含む): 39768840

約数和(自身を除く): 18713584

約数列:

[1, 2, 4, 8, 137, 274, 548, 1096, 19211, 38422, 76844, 153688, 2631907, 5263814, 10527628, 21055256]

約数ペア:

[(1, 21055256), (2, 10527628), (4, 5263814), (8, 2631907), (137, 153688), (274, 76844), (548, 38422), (1096, 19211)]