20191175739

素因数分解:

$3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{449}}^1\times {\mathrm{953}}^1$

素因数の和:1529

約数の個数: 72

約数和(自身を含む): 34356020400

約数和(自身を除く): 14164844661

約数列:

[1, 3, 7, 9, 21, 49, 63, 107, 147, 321, 441, 449, 749, 953, 963, 1347, 2247, 2859, 3143, 4041, 5243, 6671, 6741, 8577, 9429, 15729, 20013, 22001, 28287, 46697, 47187, 48043, 60039, 66003, 101971, 140091, 144129, 198009, 305913, 336301, 420273, 427897, 432387, 713797, 917739, 1008903, 1283691, 2141391, 2354107, 2995279, 3026709, 3851073, 4996579, 6424173, 7062321, 8985837, 14989737, 20966953, 21186963, 26957511, 44969211, 45784979, 62900859, 137354937, 188702577, 320494853, 412064811, 961484559, 2243463971, 2884453677, 6730391913, 20191175739]

約数ペア:

[(1, 20191175739), (3, 6730391913), (7, 2884453677), (9, 2243463971), (21, 961484559), (49, 412064811), (63, 320494853), (107, 188702577), (147, 137354937), (321, 62900859), (441, 45784979), (449, 44969211), (749, 26957511), (953, 21186963), (963, 20966953), (1347, 14989737), (2247, 8985837), (2859, 7062321), (3143, 6424173), (4041, 4996579), (5243, 3851073), (6671, 3026709), (6741, 2995279), (8577, 2354107), (9429, 2141391), (15729, 1283691), (20013, 1008903), (22001, 917739), (28287, 713797), (46697, 432387), (47187, 427897), (48043, 420273), (60039, 336301), (66003, 305913), (101971, 198009), (140091, 144129)]