20451828

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{331}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 50570240

約数和(自身を除く): 30118412

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 271, 331, 542, 662, 813, 993, 1084, 1324, 1626, 1986, 3252, 3972, 5149, 6289, 10298, 12578, 15447, 18867, 20596, 25156, 30894, 37734, 61788, 75468, 89701, 179402, 269103, 358804, 538206, 1076412, 1704319, 3408638, 5112957, 6817276, 10225914, 20451828]

約数ペア:

[(1, 20451828), (2, 10225914), (3, 6817276), (4, 5112957), (6, 3408638), (12, 1704319), (19, 1076412), (38, 538206), (57, 358804), (76, 269103), (114, 179402), (228, 89701), (271, 75468), (331, 61788), (542, 37734), (662, 30894), (813, 25156), (993, 20596), (1084, 18867), (1324, 15447), (1626, 12578), (1986, 10298), (3252, 6289), (3972, 5149)]