21124048

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6317}}^1$

素因数の和:6355

約数の個数: 40

約数和(自身を含む): 47005920

約数和(自身を除く): 25881872

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6317, 12634, 25268, 50536, 69487, 101072, 120023, 138974, 240046, 277948, 480092, 555896, 960184, 1111792, 1320253, 1920368, 2640506, 5281012, 10562024, 21124048]

約数ペア:

[(1, 21124048), (2, 10562024), (4, 5281012), (8, 2640506), (11, 1920368), (16, 1320253), (19, 1111792), (22, 960184), (38, 555896), (44, 480092), (76, 277948), (88, 240046), (152, 138974), (176, 120023), (209, 101072), (304, 69487), (418, 50536), (836, 25268), (1672, 12634), (3344, 6317)]