1218895198

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1\times {\mathrm{20389}}^1$

素因数の和:20883

約数の個数: 16

約数和(自身を含む): 1858589280

約数和(自身を除く): 639694082

約数列:

[1, 2, 71, 142, 421, 842, 20389, 29891, 40778, 59782, 1447619, 2895238, 8583769, 17167538, 609447599, 1218895198]

約数ペア:

[(1, 1218895198), (2, 609447599), (71, 17167538), (142, 8583769), (421, 2895238), (842, 1447619), (20389, 59782), (29891, 40778)]