21000391730

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1\times {\mathrm{238397}}^1$

素因数の和:238810

約数の個数: 32

約数和(自身を含む): 39547367424

約数和(自身を除く): 18546975694

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 383, 766, 1915, 3830, 8809, 17618, 44045, 88090, 238397, 476794, 1191985, 2383970, 5483131, 10966262, 27415655, 54831310, 91306051, 182612102, 456530255, 913060510, 2100039173, 4200078346, 10500195865, 21000391730]

約数ペア:

[(1, 21000391730), (2, 10500195865), (5, 4200078346), (10, 2100039173), (23, 913060510), (46, 456530255), (115, 182612102), (230, 91306051), (383, 54831310), (766, 27415655), (1915, 10966262), (3830, 5483131), (8809, 2383970), (17618, 1191985), (44045, 476794), (88090, 238397)]