201421165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 269660160

約数和(自身を除く): 68238995

約数列:

[1, 5, 11, 55, 79, 151, 307, 395, 755, 869, 1535, 1661, 3377, 4345, 8305, 11929, 16885, 24253, 46357, 59645, 121265, 131219, 231785, 266783, 509927, 656095, 1333915, 2549635, 3662203, 18311015, 40284233, 201421165]

約数ペア:

[(1, 201421165), (5, 40284233), (11, 18311015), (55, 3662203), (79, 2549635), (151, 1333915), (307, 656095), (395, 509927), (755, 266783), (869, 231785), (1535, 131219), (1661, 121265), (3377, 59645), (4345, 46357), (8305, 24253), (11929, 16885)]