21378714

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{977}}^1$

素因数の和:1510

約数の個数: 32

約数和(自身を含む): 49009536

約数和(自身を除く): 27630822

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 521, 977, 1042, 1563, 1954, 2931, 3126, 3647, 5862, 6839, 7294, 10941, 13678, 20517, 21882, 41034, 509017, 1018034, 1527051, 3054102, 3563119, 7126238, 10689357, 21378714]

約数ペア:

[(1, 21378714), (2, 10689357), (3, 7126238), (6, 3563119), (7, 3054102), (14, 1527051), (21, 1018034), (42, 509017), (521, 41034), (977, 21882), (1042, 20517), (1563, 13678), (1954, 10941), (2931, 7294), (3126, 6839), (3647, 5862)]