21805092

素因数分解:

$2^2\times 3^3\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2113

約数の個数: 48

約数和(自身を含む): 57120000

約数和(自身を除く): 35314908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 101, 108, 202, 303, 404, 606, 909, 1212, 1818, 1999, 2727, 3636, 3998, 5454, 5997, 7996, 10908, 11994, 17991, 23988, 35982, 53973, 71964, 107946, 201899, 215892, 403798, 605697, 807596, 1211394, 1817091, 2422788, 3634182, 5451273, 7268364, 10902546, 21805092]

約数ペア:

[(1, 21805092), (2, 10902546), (3, 7268364), (4, 5451273), (6, 3634182), (9, 2422788), (12, 1817091), (18, 1211394), (27, 807596), (36, 605697), (54, 403798), (101, 215892), (108, 201899), (202, 107946), (303, 71964), (404, 53973), (606, 35982), (909, 23988), (1212, 17991), (1818, 11994), (1999, 10908), (2727, 7996), (3636, 5997), (3998, 5454)]