21080112

素因数分解:

$2^4\times 3^1\times {\mathrm{643}}^1\times {\mathrm{683}}^1$

素因数の和:1337

約数の個数: 40

約数和(自身を含む): 54621504

約数和(自身を除く): 33541392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 643, 683, 1286, 1366, 1929, 2049, 2572, 2732, 3858, 4098, 5144, 5464, 7716, 8196, 10288, 10928, 15432, 16392, 30864, 32784, 439169, 878338, 1317507, 1756676, 2635014, 3513352, 5270028, 7026704, 10540056, 21080112]

約数ペア:

[(1, 21080112), (2, 10540056), (3, 7026704), (4, 5270028), (6, 3513352), (8, 2635014), (12, 1756676), (16, 1317507), (24, 878338), (48, 439169), (643, 32784), (683, 30864), (1286, 16392), (1366, 15432), (1929, 10928), (2049, 10288), (2572, 8196), (2732, 7716), (3858, 5464), (4098, 5144)]