12971216

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{9109}}^1$

素因数の和:9206

約数の個数: 20

約数和(自身を含む): 25416900

約数和(自身を除く): 12445684

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 9109, 18218, 36436, 72872, 145744, 810701, 1621402, 3242804, 6485608, 12971216]

約数ペア:

[(1, 12971216), (2, 6485608), (4, 3242804), (8, 1621402), (16, 810701), (89, 145744), (178, 72872), (356, 36436), (712, 18218), (1424, 9109)]