19905984

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{4937}}^1$

素因数の和:4962

約数の個数: 84

約数和(自身を含む): 65221104

約数和(自身を除く): 45315120

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 144, 168, 192, 224, 252, 288, 336, 448, 504, 576, 672, 1008, 1344, 2016, 4032, 4937, 9874, 14811, 19748, 29622, 34559, 39496, 44433, 59244, 69118, 78992, 88866, 103677, 118488, 138236, 157984, 177732, 207354, 236976, 276472, 311031, 315968, 355464, 414708, 473952, 552944, 622062, 710928, 829416, 947904, 1105888, 1244124, 1421856, 1658832, 2211776, 2488248, 2843712, 3317664, 4976496, 6635328, 9952992, 19905984]

約数ペア:

[(1, 19905984), (2, 9952992), (3, 6635328), (4, 4976496), (6, 3317664), (7, 2843712), (8, 2488248), (9, 2211776), (12, 1658832), (14, 1421856), (16, 1244124), (18, 1105888), (21, 947904), (24, 829416), (28, 710928), (32, 622062), (36, 552944), (42, 473952), (48, 414708), (56, 355464), (63, 315968), (64, 311031), (72, 276472), (84, 236976), (96, 207354), (112, 177732), (126, 157984), (144, 138236), (168, 118488), (192, 103677), (224, 88866), (252, 78992), (288, 69118), (336, 59244), (448, 44433), (504, 39496), (576, 34559), (672, 29622), (1008, 19748), (1344, 14811), (2016, 9874), (4032, 4937)]