21272316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136361}}^1$

素因数の和:136381

約数の個数: 24

約数和(自身を含む): 53453904

約数和(自身を除く): 32181588

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136361, 272722, 409083, 545444, 818166, 1636332, 1772693, 3545386, 5318079, 7090772, 10636158, 21272316]

約数ペア:

[(1, 21272316), (2, 10636158), (3, 7090772), (4, 5318079), (6, 3545386), (12, 1772693), (13, 1636332), (26, 818166), (39, 545444), (52, 409083), (78, 272722), (156, 136361)]