20377861

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 26046720

約数和(自身を除く): 5668859

約数列:

[1, 7, 19, 37, 41, 101, 133, 259, 287, 703, 707, 779, 1517, 1919, 3737, 4141, 4921, 5453, 10619, 13433, 26159, 28823, 28987, 71003, 78679, 153217, 201761, 497021, 550753, 1072519, 2911123, 20377861]

約数ペア:

[(1, 20377861), (7, 2911123), (19, 1072519), (37, 550753), (41, 497021), (101, 201761), (133, 153217), (259, 78679), (287, 71003), (703, 28987), (707, 28823), (779, 26159), (1517, 13433), (1919, 10619), (3737, 5453), (4141, 4921)]