81492948

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{31883}}^1$

素因数の和:31964

約数の個数: 36

約数和(自身を含む): 208903968

約数和(自身を除く): 127411020

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 31883, 63766, 95649, 127532, 191298, 286947, 382596, 573894, 1147788, 2263693, 4527386, 6791079, 9054772, 13582158, 20373237, 27164316, 40746474, 81492948]

約数ペア:

[(1, 81492948), (2, 40746474), (3, 27164316), (4, 20373237), (6, 13582158), (9, 9054772), (12, 6791079), (18, 4527386), (36, 2263693), (71, 1147788), (142, 573894), (213, 382596), (284, 286947), (426, 191298), (639, 127532), (852, 95649), (1278, 63766), (2556, 31883)]