81712218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{647}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 195084288

約数和(自身を除く): 113372070

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 97, 186, 194, 217, 291, 434, 582, 647, 651, 679, 1294, 1302, 1358, 1941, 2037, 3007, 3882, 4074, 4529, 6014, 9021, 9058, 13587, 18042, 20057, 21049, 27174, 40114, 42098, 60171, 62759, 63147, 120342, 125518, 126294, 140399, 188277, 280798, 376554, 421197, 439313, 842394, 878626, 1317939, 1945529, 2635878, 3891058, 5836587, 11673174, 13618703, 27237406, 40856109, 81712218]

約数ペア:

[(1, 81712218), (2, 40856109), (3, 27237406), (6, 13618703), (7, 11673174), (14, 5836587), (21, 3891058), (31, 2635878), (42, 1945529), (62, 1317939), (93, 878626), (97, 842394), (186, 439313), (194, 421197), (217, 376554), (291, 280798), (434, 188277), (582, 140399), (647, 126294), (651, 125518), (679, 120342), (1294, 63147), (1302, 62759), (1358, 60171), (1941, 42098), (2037, 40114), (3007, 27174), (3882, 21049), (4074, 20057), (4529, 18042), (6014, 13587), (9021, 9058)]