215510418

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{168631}}^1$

素因数の和:168710

約数の個数: 24

約数和(自身を含む): 473518656

約数和(自身を除く): 258008238

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 168631, 337262, 505893, 1011786, 1517679, 3035358, 11972801, 23945602, 35918403, 71836806, 107755209, 215510418]

約数ペア:

[(1, 215510418), (2, 107755209), (3, 71836806), (6, 35918403), (9, 23945602), (18, 11972801), (71, 3035358), (142, 1517679), (213, 1011786), (426, 505893), (639, 337262), (1278, 168631)]