20015772

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{997}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 53652480

約数和(自身を除く): 33636708

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239, 478, 717, 956, 997, 1434, 1673, 1994, 2868, 2991, 3346, 3988, 5019, 5982, 6692, 6979, 10038, 11964, 13958, 20076, 20937, 27916, 41874, 83748, 238283, 476566, 714849, 953132, 1429698, 1667981, 2859396, 3335962, 5003943, 6671924, 10007886, 20015772]

約数ペア:

[(1, 20015772), (2, 10007886), (3, 6671924), (4, 5003943), (6, 3335962), (7, 2859396), (12, 1667981), (14, 1429698), (21, 953132), (28, 714849), (42, 476566), (84, 238283), (239, 83748), (478, 41874), (717, 27916), (956, 20937), (997, 20076), (1434, 13958), (1673, 11964), (1994, 10038), (2868, 6979), (2991, 6692), (3346, 5982), (3988, 5019)]