18739656

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20021}}^1$

素因数の和:20046

約数の個数: 48

約数和(自身を含む): 54660060

約数和(自身を除く): 35920404

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20021, 40042, 60063, 80084, 120126, 160168, 180189, 240252, 260273, 360378, 480504, 520546, 720756, 780819, 1041092, 1441512, 1561638, 2082184, 2342457, 3123276, 4684914, 6246552, 9369828, 18739656]

約数ペア:

[(1, 18739656), (2, 9369828), (3, 6246552), (4, 4684914), (6, 3123276), (8, 2342457), (9, 2082184), (12, 1561638), (13, 1441512), (18, 1041092), (24, 780819), (26, 720756), (36, 520546), (39, 480504), (52, 360378), (72, 260273), (78, 240252), (104, 180189), (117, 160168), (156, 120126), (234, 80084), (312, 60063), (468, 40042), (936, 20021)]