21731619

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3461}}^1$

素因数の和:3507

約数の個数: 32

約数和(自身を含む): 37223424

約数和(自身を除く): 15491805

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 3461, 6279, 10383, 24227, 44993, 72681, 79603, 134979, 238809, 314951, 557221, 944853, 1034839, 1671663, 3104517, 7243873, 21731619]

約数ペア:

[(1, 21731619), (3, 7243873), (7, 3104517), (13, 1671663), (21, 1034839), (23, 944853), (39, 557221), (69, 314951), (91, 238809), (161, 134979), (273, 79603), (299, 72681), (483, 44993), (897, 24227), (2093, 10383), (3461, 6279)]