21874853

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^2$

素因数の和:126

約数の個数: 36

約数和(自身を含む): 30269664

約数和(自身を除く): 8394811

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 169, 287, 451, 533, 1001, 1183, 1681, 1859, 3157, 3731, 5863, 6929, 11767, 13013, 18491, 21853, 41041, 48503, 76219, 129437, 152971, 240383, 284089, 533533, 1682681, 1988623, 3124979, 21874853]

約数ペア:

[(1, 21874853), (7, 3124979), (11, 1988623), (13, 1682681), (41, 533533), (77, 284089), (91, 240383), (143, 152971), (169, 129437), (287, 76219), (451, 48503), (533, 41041), (1001, 21853), (1183, 18491), (1681, 13013), (1859, 11767), (3157, 6929), (3731, 5863)]