21000201248

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{96893}}^1$

素因数の和:97437

約数の個数: 48

約数和(自身を含む): 44610385176

約数和(自身を除く): 23610183928

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 521, 1042, 2084, 4168, 6773, 8336, 13546, 16672, 27092, 54184, 96893, 108368, 193786, 216736, 387572, 775144, 1259609, 1550288, 2519218, 3100576, 5038436, 10076872, 20153744, 40307488, 50481253, 100962506, 201925012, 403850024, 656256289, 807700048, 1312512578, 1615400096, 2625025156, 5250050312, 10500100624, 21000201248]

約数ペア:

[(1, 21000201248), (2, 10500100624), (4, 5250050312), (8, 2625025156), (13, 1615400096), (16, 1312512578), (26, 807700048), (32, 656256289), (52, 403850024), (104, 201925012), (208, 100962506), (416, 50481253), (521, 40307488), (1042, 20153744), (2084, 10076872), (4168, 5038436), (6773, 3100576), (8336, 2519218), (13546, 1550288), (16672, 1259609), (27092, 775144), (54184, 387572), (96893, 216736), (108368, 193786)]