20187059217

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{20747}}^1$

素因数の和:21233

約数の個数: 32

約数和(自身を含む): 29535192960

約数和(自身を除く): 9348133743

約数列:

[1, 3, 13, 39, 61, 183, 409, 793, 1227, 2379, 5317, 15951, 20747, 24949, 62241, 74847, 269711, 324337, 809133, 973011, 1265567, 3796701, 8485523, 16452371, 25456569, 49357113, 110311799, 330935397, 517616903, 1552850709, 6729019739, 20187059217]

約数ペア:

[(1, 20187059217), (3, 6729019739), (13, 1552850709), (39, 517616903), (61, 330935397), (183, 110311799), (409, 49357113), (793, 25456569), (1227, 16452371), (2379, 8485523), (5317, 3796701), (15951, 1265567), (20747, 973011), (24949, 809133), (62241, 324337), (74847, 269711)]