21000634473

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10989343}}^1$

素因数の和:10989373

約数の個数: 24

約数和(自身を含む): 35077986048

約数和(自身を除く): 14077351575

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10989343, 32968029, 76925401, 142861459, 230776203, 428584377, 538477807, 1000030213, 1615433421, 3000090639, 7000211491, 21000634473]

約数ペア:

[(1, 21000634473), (3, 7000211491), (7, 3000090639), (13, 1615433421), (21, 1000030213), (39, 538477807), (49, 428584377), (91, 230776203), (147, 142861459), (273, 76925401), (637, 32968029), (1911, 10989343)]