19109363

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 24227280

約数和(自身を除く): 5117917

約数列:

[1, 7, 13, 49, 91, 131, 229, 637, 917, 1603, 1703, 2977, 6419, 11221, 11921, 20839, 29999, 83447, 145873, 209993, 389987, 1469951, 2729909, 19109363]

約数ペア:

[(1, 19109363), (7, 2729909), (13, 1469951), (49, 389987), (91, 209993), (131, 145873), (229, 83447), (637, 29999), (917, 20839), (1603, 11921), (1703, 11221), (2977, 6419)]