21047402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1\times {\mathrm{823}}^1$

素因数の和:1517

約数の個数: 16

約数和(自身を含む): 33322560

約数和(自身を除く): 12275158

約数列:

[1, 2, 19, 38, 673, 823, 1346, 1646, 12787, 15637, 25574, 31274, 553879, 1107758, 10523701, 21047402]

約数ペア:

[(1, 21047402), (2, 10523701), (19, 1107758), (38, 553879), (673, 31274), (823, 25574), (1346, 15637), (1646, 12787)]