21177604

素因数分解:

$2^2\times 7^2\times {\mathrm{167}}^1\times {\mathrm{647}}^1$

素因数の和:832

約数の個数: 36

約数和(自身を含む): 43436736

約数和(自身を除く): 22259132

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 167, 196, 334, 647, 668, 1169, 1294, 2338, 2588, 4529, 4676, 8183, 9058, 16366, 18116, 31703, 32732, 63406, 108049, 126812, 216098, 432196, 756343, 1512686, 3025372, 5294401, 10588802, 21177604]

約数ペア:

[(1, 21177604), (2, 10588802), (4, 5294401), (7, 3025372), (14, 1512686), (28, 756343), (49, 432196), (98, 216098), (167, 126812), (196, 108049), (334, 63406), (647, 32732), (668, 31703), (1169, 18116), (1294, 16366), (2338, 9058), (2588, 8183), (4529, 4676)]