21708144

素因数分解:

$2^4\times 3^2\times {\mathrm{233}}^1\times {\mathrm{647}}^1$

素因数の和:894

約数の個数: 60

約数和(自身を含む): 61107696

約数和(自身を除く): 39399552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 233, 466, 647, 699, 932, 1294, 1398, 1864, 1941, 2097, 2588, 2796, 3728, 3882, 4194, 5176, 5592, 5823, 7764, 8388, 10352, 11184, 11646, 15528, 16776, 23292, 31056, 33552, 46584, 93168, 150751, 301502, 452253, 603004, 904506, 1206008, 1356759, 1809012, 2412016, 2713518, 3618024, 5427036, 7236048, 10854072, 21708144]

約数ペア:

[(1, 21708144), (2, 10854072), (3, 7236048), (4, 5427036), (6, 3618024), (8, 2713518), (9, 2412016), (12, 1809012), (16, 1356759), (18, 1206008), (24, 904506), (36, 603004), (48, 452253), (72, 301502), (144, 150751), (233, 93168), (466, 46584), (647, 33552), (699, 31056), (932, 23292), (1294, 16776), (1398, 15528), (1864, 11646), (1941, 11184), (2097, 10352), (2588, 8388), (2796, 7764), (3728, 5823), (3882, 5592), (4194, 5176)]