21425464

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4547}}^1$

素因数の和:4603

約数の個数: 32

約数和(自身を含む): 43660800

約数和(自身を除く): 22235336

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4547, 4712, 9094, 18188, 36376, 86393, 140957, 172786, 281914, 345572, 563828, 691144, 1127656, 2678183, 5356366, 10712732, 21425464]

約数ペア:

[(1, 21425464), (2, 10712732), (4, 5356366), (8, 2678183), (19, 1127656), (31, 691144), (38, 563828), (62, 345572), (76, 281914), (124, 172786), (152, 140957), (248, 86393), (589, 36376), (1178, 18188), (2356, 9094), (4547, 4712)]