21641608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{823}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 43012800

約数和(自身を除く): 21371192

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 173, 346, 692, 823, 1384, 1646, 3287, 3292, 6574, 6584, 13148, 15637, 26296, 31274, 62548, 125096, 142379, 284758, 569516, 1139032, 2705201, 5410402, 10820804, 21641608]

約数ペア:

[(1, 21641608), (2, 10820804), (4, 5410402), (8, 2705201), (19, 1139032), (38, 569516), (76, 284758), (152, 142379), (173, 125096), (346, 62548), (692, 31274), (823, 26296), (1384, 15637), (1646, 13148), (3287, 6584), (3292, 6574)]