21259898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 36953280

約数和(自身を除く): 15693382

約数列:

[1, 2, 11, 19, 22, 38, 181, 209, 281, 362, 418, 562, 1991, 3091, 3439, 3982, 5339, 6182, 6878, 10678, 37829, 50861, 58729, 75658, 101722, 117458, 559471, 966359, 1118942, 1932718, 10629949, 21259898]

約数ペア:

[(1, 21259898), (2, 10629949), (11, 1932718), (19, 1118942), (22, 966359), (38, 559471), (181, 117458), (209, 101722), (281, 75658), (362, 58729), (418, 50861), (562, 37829), (1991, 10678), (3091, 6878), (3439, 6182), (3982, 5339)]