19800585

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{911}}^1$

素因数の和:955

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 22224375

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 105, 115, 135, 161, 189, 207, 315, 345, 483, 621, 805, 911, 945, 1035, 1449, 2415, 2733, 3105, 4347, 4555, 6377, 7245, 8199, 13665, 19131, 20953, 21735, 24597, 31885, 40995, 57393, 62859, 95655, 104765, 122985, 146671, 172179, 188577, 286965, 314295, 440013, 565731, 733355, 860895, 942885, 1320039, 2200065, 2828655, 3960117, 6600195, 19800585]

約数ペア:

[(1, 19800585), (3, 6600195), (5, 3960117), (7, 2828655), (9, 2200065), (15, 1320039), (21, 942885), (23, 860895), (27, 733355), (35, 565731), (45, 440013), (63, 314295), (69, 286965), (105, 188577), (115, 172179), (135, 146671), (161, 122985), (189, 104765), (207, 95655), (315, 62859), (345, 57393), (483, 40995), (621, 31885), (805, 24597), (911, 21735), (945, 20953), (1035, 19131), (1449, 13665), (2415, 8199), (2733, 7245), (3105, 6377), (4347, 4555)]