491489406

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{384577}}^1$

素因数の和:384656

約数の個数: 24

約数和(自身を含む): 1079895024

約数和(自身を除く): 588405618

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 384577, 769154, 1153731, 2307462, 3461193, 6922386, 27304967, 54609934, 81914901, 163829802, 245744703, 491489406]

約数ペア:

[(1, 491489406), (2, 245744703), (3, 163829802), (6, 81914901), (9, 54609934), (18, 27304967), (71, 6922386), (142, 3461193), (213, 2307462), (426, 1153731), (639, 769154), (1278, 384577)]