205953657

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 361267200

約数和(自身を除く): 155313543

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 199, 221, 223, 273, 357, 597, 663, 669, 1393, 1547, 1561, 2587, 2899, 3383, 3791, 4179, 4641, 4683, 7761, 8697, 10149, 11373, 18109, 20293, 23681, 26537, 43979, 44377, 49283, 54327, 60879, 71043, 79611, 131937, 133131, 147849, 307853, 310639, 344981, 576901, 754409, 923559, 931917, 1034943, 1730703, 2263227, 4038307, 5280863, 9807317, 12114921, 15842589, 29421951, 68651219, 205953657]

約数ペア:

[(1, 205953657), (3, 68651219), (7, 29421951), (13, 15842589), (17, 12114921), (21, 9807317), (39, 5280863), (51, 4038307), (91, 2263227), (119, 1730703), (199, 1034943), (221, 931917), (223, 923559), (273, 754409), (357, 576901), (597, 344981), (663, 310639), (669, 307853), (1393, 147849), (1547, 133131), (1561, 131937), (2587, 79611), (2899, 71043), (3383, 60879), (3791, 54327), (4179, 49283), (4641, 44377), (4683, 43979), (7761, 26537), (8697, 23681), (10149, 20293), (11373, 18109)]