20213802

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1171}}^1$

素因数の和:1323

約数の個数: 48

約数和(自身を含む): 50461632

約数和(自身を除く): 30247830

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 137, 274, 411, 822, 959, 1171, 1233, 1918, 2342, 2466, 2877, 3513, 5754, 7026, 8197, 8631, 10539, 16394, 17262, 21078, 24591, 49182, 73773, 147546, 160427, 320854, 481281, 962562, 1122989, 1443843, 2245978, 2887686, 3368967, 6737934, 10106901, 20213802]

約数ペア:

[(1, 20213802), (2, 10106901), (3, 6737934), (6, 3368967), (7, 2887686), (9, 2245978), (14, 1443843), (18, 1122989), (21, 962562), (42, 481281), (63, 320854), (126, 160427), (137, 147546), (274, 73773), (411, 49182), (822, 24591), (959, 21078), (1171, 17262), (1233, 16394), (1918, 10539), (2342, 8631), (2466, 8197), (2877, 7026), (3513, 5754)]