19862488653

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 31082987520

約数和(自身を除く): 11220498867

約数列:

[1, 3, 7, 21, 79, 137, 237, 281, 311, 411, 553, 843, 933, 959, 1659, 1967, 2177, 2877, 5901, 6531, 10823, 22199, 24569, 32469, 38497, 42607, 66597, 73707, 75761, 87391, 115491, 127821, 155393, 171983, 227283, 262173, 269479, 298249, 466179, 515949, 611737, 808437, 894747, 1835211, 3041263, 3365953, 6903889, 9123789, 10097859, 11972567, 20711667, 21288841, 23561671, 35917701, 48327223, 63866523, 70685013, 83807969, 144981669, 251423907, 945832793, 2837498379, 6620829551, 19862488653]

約数ペア:

[(1, 19862488653), (3, 6620829551), (7, 2837498379), (21, 945832793), (79, 251423907), (137, 144981669), (237, 83807969), (281, 70685013), (311, 63866523), (411, 48327223), (553, 35917701), (843, 23561671), (933, 21288841), (959, 20711667), (1659, 11972567), (1967, 10097859), (2177, 9123789), (2877, 6903889), (5901, 3365953), (6531, 3041263), (10823, 1835211), (22199, 894747), (24569, 808437), (32469, 611737), (38497, 515949), (42607, 466179), (66597, 298249), (73707, 269479), (75761, 262173), (87391, 227283), (115491, 171983), (127821, 155393)]