20519604

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{761}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 59911488

約数和(自身を除く): 39391884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 107, 126, 214, 252, 321, 428, 642, 749, 761, 963, 1284, 1498, 1522, 1926, 2247, 2283, 2996, 3044, 3852, 4494, 4566, 5327, 6741, 6849, 8988, 9132, 10654, 13482, 13698, 15981, 21308, 26964, 27396, 31962, 47943, 63924, 81427, 95886, 162854, 191772, 244281, 325708, 488562, 569989, 732843, 977124, 1139978, 1465686, 1709967, 2279956, 2931372, 3419934, 5129901, 6839868, 10259802, 20519604]

約数ペア:

[(1, 20519604), (2, 10259802), (3, 6839868), (4, 5129901), (6, 3419934), (7, 2931372), (9, 2279956), (12, 1709967), (14, 1465686), (18, 1139978), (21, 977124), (28, 732843), (36, 569989), (42, 488562), (63, 325708), (84, 244281), (107, 191772), (126, 162854), (214, 95886), (252, 81427), (321, 63924), (428, 47943), (642, 31962), (749, 27396), (761, 26964), (963, 21308), (1284, 15981), (1498, 13698), (1522, 13482), (1926, 10654), (2247, 9132), (2283, 8988), (2996, 6849), (3044, 6741), (3852, 5327), (4494, 4566)]