21078828

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30817}}^1$

素因数の和:30846

約数の個数: 36

約数和(自身を含む): 56088760

約数和(自身を除く): 35009932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30817, 61634, 92451, 123268, 184902, 277353, 369804, 554706, 585523, 1109412, 1171046, 1756569, 2342092, 3513138, 5269707, 7026276, 10539414, 21078828]

約数ペア:

[(1, 21078828), (2, 10539414), (3, 7026276), (4, 5269707), (6, 3513138), (9, 2342092), (12, 1756569), (18, 1171046), (19, 1109412), (36, 585523), (38, 554706), (57, 369804), (76, 277353), (114, 184902), (171, 123268), (228, 92451), (342, 61634), (684, 30817)]