19628763

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 33926400

約数和(自身を除く): 14297637

約数列:

[1, 3, 7, 11, 21, 33, 49, 61, 77, 147, 183, 199, 231, 427, 539, 597, 671, 1281, 1393, 1617, 2013, 2189, 2989, 4179, 4697, 6567, 8967, 9751, 12139, 14091, 15323, 29253, 32879, 36417, 45969, 84973, 98637, 107261, 133529, 254919, 321783, 400587, 594811, 934703, 1784433, 2804109, 6542921, 19628763]

約数ペア:

[(1, 19628763), (3, 6542921), (7, 2804109), (11, 1784433), (21, 934703), (33, 594811), (49, 400587), (61, 321783), (77, 254919), (147, 133529), (183, 107261), (199, 98637), (231, 84973), (427, 45969), (539, 36417), (597, 32879), (671, 29253), (1281, 15323), (1393, 14091), (1617, 12139), (2013, 9751), (2189, 8967), (2989, 6567), (4179, 4697)]