21890168

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{18121}}^1$

素因数の和:18278

約数の個数: 16

約数和(自身を含む): 41318160

約数和(自身を除く): 19427992

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 18121, 36242, 72484, 144968, 2736271, 5472542, 10945084, 21890168]

約数ペア:

[(1, 21890168), (2, 10945084), (4, 5472542), (8, 2736271), (151, 144968), (302, 72484), (604, 36242), (1208, 18121)]