20794788

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{461}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 39745692

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 179, 252, 358, 461, 537, 716, 922, 1074, 1253, 1383, 1611, 1844, 2148, 2506, 2766, 3222, 3227, 3759, 4149, 5012, 5532, 6444, 6454, 7518, 8298, 9681, 11277, 12908, 15036, 16596, 19362, 22554, 29043, 38724, 45108, 58086, 82519, 116172, 165038, 247557, 330076, 495114, 577633, 742671, 990228, 1155266, 1485342, 1732899, 2310532, 2970684, 3465798, 5198697, 6931596, 10397394, 20794788]

約数ペア:

[(1, 20794788), (2, 10397394), (3, 6931596), (4, 5198697), (6, 3465798), (7, 2970684), (9, 2310532), (12, 1732899), (14, 1485342), (18, 1155266), (21, 990228), (28, 742671), (36, 577633), (42, 495114), (63, 330076), (84, 247557), (126, 165038), (179, 116172), (252, 82519), (358, 58086), (461, 45108), (537, 38724), (716, 29043), (922, 22554), (1074, 19362), (1253, 16596), (1383, 15036), (1611, 12908), (1844, 11277), (2148, 9681), (2506, 8298), (2766, 7518), (3222, 6454), (3227, 6444), (3759, 5532), (4149, 5012)]