21488872

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{30181}}^1$

素因数の和:30276

約数の個数: 16

約数和(自身を含む): 40745700

約数和(自身を除く): 19256828

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 30181, 60362, 120724, 241448, 2686109, 5372218, 10744436, 21488872]

約数ペア:

[(1, 21488872), (2, 10744436), (4, 5372218), (8, 2686109), (89, 241448), (178, 120724), (356, 60362), (712, 30181)]