18864573

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 31696896

約数和(自身を除く): 12832323

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1607, 1677, 3913, 4821, 11249, 11739, 20891, 33747, 62673, 69101, 146237, 207303, 438711, 483707, 898313, 1451121, 2694939, 6288191, 18864573]

約数ペア:

[(1, 18864573), (3, 6288191), (7, 2694939), (13, 1451121), (21, 898313), (39, 483707), (43, 438711), (91, 207303), (129, 146237), (273, 69101), (301, 62673), (559, 33747), (903, 20891), (1607, 11739), (1677, 11249), (3913, 4821)]