26641209

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 42025984

約数和(自身を除く): 15384775

約数列:

[1, 3, 7, 21, 43, 129, 163, 181, 301, 489, 543, 903, 1141, 1267, 3423, 3801, 7009, 7783, 21027, 23349, 29503, 49063, 54481, 88509, 147189, 163443, 206521, 619563, 1268629, 3805887, 8880403, 26641209]

約数ペア:

[(1, 26641209), (3, 8880403), (7, 3805887), (21, 1268629), (43, 619563), (129, 206521), (163, 163443), (181, 147189), (301, 88509), (489, 54481), (543, 49063), (903, 29503), (1141, 23349), (1267, 21027), (3423, 7783), (3801, 7009)]